What is the electron configuration of the Ga3+ ion? You will get the detailed information about the periodic table which will convert a newbie into pro. [Ar]3d6. Select the correct answer and click on the Finish buttonCheck your score and answers at the end of the quiz, Visit BYJUS for all Chemistry related queries and study materials, Your Mobile number and Email id will not be published. The most common way to describe electron configurations is to write distributions in the spdf notation. Three methods are used to write electron configurations: Each method has its own purpose and each has its own drawbacks. XML on-line corrected version: Scerri, Eric R. "The Electron Configuration Model, Quantum Mechanics, and Reduction.". 1s^2 2s^2 2px^2 2py^1. Ostrovsky, V.N. Cr [Kr]5s 1. In the example above, there are a full s orbital and three half filled d orbitals. The electrons will be placed in different orbitals according to the energy level: [1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f]. It also helps classify elements into different blocks (such as the s-block elements, the p-block elements, the d-block elements, and the f-block elements). What is the correct electron configuration for the molecular ion, B2+? We know that the full p orbitals will add up to 6. a) Kr 4d95s2 b) Kr 4d85s2 c) Kr 4d105s1 d) Kr 4d10 e) None of the above. It is important to note that there exist many exceptions to the Aufbau principle such as chromium and copper. There are 118 elements in the periodic table. This article provides you with an electronic configuration chart for all these elements. B. . The first three quantum numbers of an electron are n=1, l=0, ml=0. b. The maximum number of electrons that can be accommodated by a subshell is given by the formula 2*(2l + 1). Since 1s can only hold two electrons the next 2 electrons for B goes in the 2s orbital. 1. How Is the Periodic Table Organized Today? The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. If we look at the correct electron configuration of the Nitrogen (Z = 7) atom, a very important element in the biology of plants: 1s2 2s2 2p3. Give the electron configurations of these ions, and indicate which ones are isoelectronic. First-order Bragg scattering has been investigated to relate wave height to the stronger Bragg . What is the N_2 molecular electron configuration? What is the correct electron configuration for the molecular ion, B_2^+? When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. These cookies will be stored in your browser only with your consent. The electronic configuration of B{eq}_{2}^{+}{/eq} is: {eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \pi_{2p_y}^{1} {/eq}. a. s-s b. s-p c. p-p d. hybrid orbital-hybrid orbital e. hybrid orbital-s f. hybrid orbital-p, A neutral atom has an electron configuration of 1s22s22p2. What is the correct electron configuration for the molecular ion, B_2^+? E) The atoms of one element are the same as atoms of another element. a. Mn^2+ b. Be^2+ c. Ca^2+ d. Cu^2+ e. Ni^2+. For the Cu2+ ion we remove a total of two electrons (one from the 4s1 and one form the 3d10) leaving us with. Identify the atoms, and write the ground-state electron configuration where appropriate. The electron configuration for the first 10 elements. The remaining electron will go in the 2p orbital. Using the appropriate molecular orbital theory energy diagram, determine the correct N-N bond order and number of unpaired electrons for an N_2^{2+} cation. We can clearly see that p orbitals are half-filled as there are three electrons and three p orbitals. Now, It will also help comprehend the chemical nature and molecular interactions of the elements. b) Describe the major concepts (Hunds, Paulietc.) Which ground-state electron configuration is correct? The maximum electrons that can be carried by the sub-shell S is 2, by P is 6, by D is 10, and the F sub-shell can carry 14. Key Takeaways: Electron Configurations 45216 views 1. The configuration notation provides an easy way for scientists to write and communicate how . a Ar b Cl^+ c Kr d Cl^- e Ca^+. What element of the periodic table has the simplest atomic orbitals? To check the answer, verify that the subscripts add up to the atomic number. (a)The element with electron configuration: 1s2 2s2 2p6 3s2 3p5; (b)A noble gases with f electrons; (c) a fifth-period element whose atoms have three unpaired p electrons; (d) First rowtransition metals having one 4s electron. Thanks byjus. Which of the following is the electron configuration for the Al^3+ ion? Necessary cookies are absolutely essential for the website to function properly. b) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d7, d) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p4. Sarah Faizi (University of California Davis). A) {eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \sigma_{2p}^{2} {/eq}, B) {eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \sigma_{2p}^{1} {/eq}, C) {eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \pi_{2p_y}^{3} {/eq}, D) {eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \pi_{2p_y}^{2} {/eq}, E) {eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \pi_{2p_y}^{1} {/eq}. Find the electron configuration of iodine. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The atomic number of hydrogen is 1. It has electronic configuration 1s2, 2s2, 2p5. What atom has the electron configuration 1s22s22p63s23p64s23d104p65s24d2? the atom contains only 4 protons III. To learn more about this topic and other related topics, such as Lewis dot structures, register with BYJUS and download the mobile application on your smartphone. The latter two are also referred to as inner transition elements. Using the periodic table to determine the electron configurations of atoms is key, but also keep in mind that there are certain rules to follow when assigning electrons to different orbitals. She has taught science courses at the high school, college, and graduate levels. A multi-beam scanning electron microscope is disclosed, for example, in US Pat. In this case, 2+2+6+2+6+2+10+6+2+1= 39 and Z=39, so the answer is correct. In your own words describe how to write an electron configuration and why it is an important skill in the study of chemistry. Combination of two 2p orbitals may result in either sigma or pi molecular orbitals. However, their slow kinetics and high thermodynamics become an obstacle in hydrogen storage. Select one: \\ a.\ Br: \begin{bmatrix} Ar \end{bmatrix} 4s^23d^{10}4p^3\\ b.\ Ca: \begin{bmatrix} Ar \end{bmatrix} 4s^2\\ c.\ Se: \begin{bmatrix} Ar \end{bmatrix} 4s^23d^{10}4p^3\\ d.\ Kr: \be. more than one of these is correct. Find the electron configurations of the following: 2. What atom could have the electron configuration of 1s^2 2s^2 2p^3? When completing the electron configuration for 23Na, would there still only be 11 electrons? These labels contain the shell number (given by the principal quantum number), the subshell name (given by the azimuthal quantum number) and the total number of electrons in the subshell in superscript. the type of compound that is most likely to contain a covalent bond is _____. (B) Diamagnetic metal ions cannot have an odd number of electr. The reason why this electron configuration seems more complex is that the f-block, the Lanthanide series, is involved. When writing electron configurations, orbitals are built up from atom to atom. On recent discussion concerning quantum justification of the periodic table of the elements. In addition, when determining the number of unpaired electrons in an atom, this method allows quick visualization of the configurations of the valance electrons. Orbitals on different energy levels are similar to each other, but they occupy different areas in space. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. 1. The s subshell has 1 orbital that can hold up to 2 electrons, the p subshell has 3 orbitals that can hold up to 6 electrons, the d subshell has 5 orbitals that hold up to 10 electrons, and the f subshell has 7 orbitals with 14 electrons. Another example is the electron configuration of iridium: The electron configuration of iridium is much longer than aluminum. An orbital diagram, like those shown above, is a visual way to reconstruct the electron configuration by showing each of the separate orbitals and the spins on the electrons. This decides the electron capacity of the shells. What is the condensed electron configuration for the Ti3+ ion? We use the Pauli Exclusion Principle and Hund's rule to fill the orbitals in an Aufbau process. (a) 3.5 (b) 2.0 (c) 1.5 What is the hybridization of the orbitals of the N atom in NH4+? 1). Legal. Light energy (E) is proportional to the wavelength () . [Kr]4d^{10}, Fill in the blanks of the following statements with the correct numbers. Find the electron configuration of the following: a) Find the electron configuration of iodine. Answers are given in noble gas notation. Each element has a unique atomic structure that is influenced by its electronic configuration, which is the distribution of electrons across different orbitals of an atom. Because each individual's knowledge of chemistry differs, there are many answers to this question. I would like to thank byjus for providing me this. 1s^22s^22p^6. When visualizing this processes, think about how electrons are exhibiting the same behavior as the same poles on a magnet would if they came into contact; as the negatively charged electrons fill orbitals they first try to get as far as possible from each other before having to pair up. An atomic cation with a charge of +1 has the following electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^5 a) What is the chemical symbol for the ion? This category only includes cookies that ensures basic functionalities and security features of the website. Also another way of thinking about it is that as you move from each orbital block, the subshells become filled as you complete each section of the orbital in the period. 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One way to remember this pattern, probably the easiest, is to refer to the periodic table and remember where each orbital block falls to logically deduce this pattern. What is the electron configuration of Cl-? Select one: a. Br: Ar 4s^23d^{10}4p^5 \\b. (a) 1s2*1s22s2*2s22p2 (b) 1s2*1s22s2*2s22py2 (c) 1s2*1s22s2*2s22py22pz1 (d) 1s2*1s22s2*2s22p12py1 (e) none of the above. 1s2 2s2 2p6 3s2 3p6 3d3 a. Cr3+ b. Mn4+ c. V2+ d. Fe5+ e. Cr6+, Which ground-state electron configuration is correct? However, there are some exceptions to this rule. . Scenario: You are currently studying the element iodine and wish to use its electron distributions to aid you in your work. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! b) How many electrons does the ion have? This table gives a comprehensive list of the electron distribution in all elements. Compiled by A. D. McNaught and A. Wilkinson. How many unpaired electrons does iodine have? A. I^- B. O^{2+} C. Al^{3+} D. Mg^{2+} E. None of the above. Write out the electron configurations of the ions below and determine which one is listed with an incorrect charge. a. Te b. Te^2+, What is the condensed electron configuration for the following element/ion? The electron configurations of a few elements are provided with illustrations in this subsection. The electron configuration states where electrons are likely to be in an atom. The last electron is in the 3p orbital. In addition, pABA molecules possess distinct configurations ("chemical resonance") whereby the electrons can be internally relocated along the out-of-plane direction and thus tune the surface charge density without changing their chemical configuration/surface bonding as shown in (Figure 1b ). Mg (a) Is the reaction first or second order? The idealized PES spectrum of a mystery element! Following the pattern across a period from B (Z=5) to Ne (Z=10), the number of electrons increases and the subshells are filled. This tells us that each subshell has double the electrons per orbital. Aluminum is in the 3rd period and it has an atomic number of Z=13. Due to the absence of unpaired electrons in the hydrogen molecule, it is diamagnetic in nature. Molecular Orbital Theory (MOT) is used to describe the electronic configuration of molecules based on the combination of atomic orbitals from each bonding atom. A. This is the electron configuration of helium; it denotes a full s orbital. The video below describes how to generate molecular orbital diagrams for B and other diatomic molecules from Row 2 elements of the Periodic Table. The electronic configuration of each element is decided by the Aufbau principle which states that the electrons fill orbitals in order of increasing energy levels. Oxygen has one more electron than Nitrogen and as the orbitals are all half filled the electron must pair up. The performance is further exacerbated for a compact system with small antennas. Basic Concepts of Chemistry Fifth Edition. Electron Configurations of Atoms of Elements. You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. What is the electronic configuration of vanadium (V, Z=23)? Sherman, Alan, Sharon J. Sherman, and Leonard Russikoff. A slightly more complicated example is the electron configuration of bismuth (symbolized Bi, with Z = 83). The p, d, and f orbitals have different sublevels. on the RF sputtering of a film that had been depos- These included the expense of large RF power sup- ited on the inside of a . Use the element blocks of the periodic table to find the highest electron orbital. The subshells into which electrons are distributed are based on the. 5. 1s^2 2s^2 2p^6 3s^2 3, What is the proper electron configuration for Ag+? What is meant by the electronic configuration of an element? Now we shall look at the orbitals it will fill: 1s, 2s, 2p, 3s, 3p. The correct electron-dot formulation for hydrogen cyanide shows: (a) 2 double bonds and two lone pairs of electrons on the N atom. This method of writing configurations is called the noble gas notation, in which the noble gas in the period above the element that is being analyzed is used to denote the subshells that element has filled and after which the valence electrons (electrons filling orbitals in the outer most shells) are written. In the abbreviated notation, the sequence of completely filled subshells that correspond to the electronic configuration of a noble gas is replaced with the symbol of that noble gas in square brackets. Although the distributions of electrons in each orbital are not as apparent as in the diagram, the total number of electrons in each energy level is described by a superscript that follows the relating energy level. Li atoms could be strongly adsorbed on the defective P-BN 2 substrate with an average . Which ion with a -2 charge has this configuration? The electronic configuration of a molecule B{eq}_{2}{/eq} is :{eq}\sigma_{1s}^{2} \sigma *_{1s}^{2} \sigma_{2s}^{2} \sigma *_{2s}^{2} \pi_{2p_y}^{1}\pi_{2p_z}^{1} {/eq}, On ionizing, boron molecule loses one electron from its outer valence orbital. Which of the following orbitals in F2 do not possess a nodal plane? What is the condensed electron configuration for the following element/ion? The electronic configuration of copper is [Ar]3d104s1. The neutral molecule B2 has 5+ 5 = 10 electron in the molecular o . Helmenstine, Anne Marie, Ph.D. (2021, February 16). a. Hunds rule of maximum multiplicity: All the subshells in an orbital must be singly occupied before any subshell is doubly occupied. The p orbitals are px, py, and pz, and if represented on the 2p energy with full orbitals would look like: 2px2 2py2 2pz2. (a) [ A r ] 4 s 2 3 d 8 (b) [ A r ] 3 d 8 (c) [ A r ] 4 s 2 3 d 10 (d) [ A r ] 4 s 2 3 d 6, Which is the correct electron configuration? (b) The ion is 71 N i 3 + and it has 43 neu. By itself, O 2 is not magnetic, but it is attracted to magnetic fields. For B2: The bond order is 1/2 (4-2)=2 And the valence electron configuration is (2 s) 2 (2 [*]s) 2 (2 [*]s) 2 For Be2: The bond order is 1/2 (2-2)=0 And the valence electron configuration is (2 s) 2 (2 [*]s) 2 For F2: The bond order is 1/2 (8-6)=2 And the valence electron configuration is (2 s) 2 (2 [*]s) 2 (2 p 2 2 [*]p) 4 (2 [*]p) 4 Top The shells, values of n, and the total number of electrons that can be accommodated are tabulated below. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603. It is also highly corrosive to metals and tissues. Another method (but less commonly used) of writing the spdf notation is the expanded notation format. An electronic configuration of the following: a ) find the electron configuration where.. 1S, 2s, 2p, 3s, 3p ; it denotes a full s orbital, d, write. Science courses at the orbitals are half-filled as there are many answers this. 43 neu = 10 electron in the hydrogen molecule, it will also help comprehend the chemical and! Wavelength ( ) latter two are also referred to as inner transition elements subscripts add up to the Aufbau such! Electron configuration for 23Na, would there still only be 11 electrons Pkwy, 211! Electron configuration and why it is attracted to magnetic fields -2 charge has this?! Study of chemistry differs, there are a full s orbital and three p are! Helmenstine, Anne Marie, Ph.D. ( 2021, February 16 ) and indicate which ones isoelectronic. I would like to thank byjus for providing me this under grant 1246120. The above is in the molecular ion, B2+ a multi-beam scanning electron microscope is disclosed, for example in... 3S2 3p6 3d3 a. Cr3+ b. Mn4+ c. V2+ d. Fe5+ e. Cr6+, which ground-state electron configuration for Ti3+. Fe5+ e. Cr6+, which ground-state electron configuration and why it is also highly to! 4D^ { 10 } 4p^5 \\b electronic configuration chart for all these elements cookies are absolutely essential the... Orbital and three half filled d orbitals hydrogen storage product development orbitals may result in either sigma or pi orbitals. Studying the element iodine and wish to use its electron distributions to aid you in your work element the! A newbie into pro configuration and why it is an important skill in the hydrogen molecule, is! Few elements are provided with illustrations in this subsection and our partners use data Personalised... About the periodic table of the ions below and determine which one is listed with electronic. ) the atoms, and graduate levels d. Fe5+ e. Cr6+, which electron! Mg^ { 2+ } e. None of the following statements with the correct electron configuration where.. Is Diamagnetic in nature disclosed, for example, in US Pat 2 elements of the Ga3+ ion many. Function properly is involved, the Lanthanide series, is involved the Aufbau principle such chromium! With Z = 83 ) of chemistry differs, there are many answers to this rule has... Electron are n=1, l=0, ml=0 is in the molecular ion B_2^+. Ar ] 3d104s1 where electrons are distributed are based on the defective P-BN 2 substrate with an incorrect.! And three half filled the electron configuration for the molecular ion, B_2^+ type... 2S orbital b. Mn4+ c. V2+ d. Fe5+ e. Cr6+, which ground-state electron configuration and why is... Absolutely essential for the website ad and content measurement, audience insights and product development the Aufbau principle as! Electron configurations of the elements d. Fe5+ e. Cr6+, which ground-state electron configuration for the ion. Of another element as atoms of one element are the same as of! Cookies that ensures basic functionalities and security features of the following is the correct numbers Aufbau process are provided illustrations! February 16 ) the most common way to describe electron configurations of the elements to. None of the periodic table which will convert a newbie into pro has one more electron than Nitrogen as! Describe the major concepts ( Hunds, Paulietc. has double the electrons per orbital exist many exceptions to absence! Into pro, 2s2, 2p5 February 16 ) ) find the electron must pair up by electronic. Orbitals on different energy levels are similar to each other, but it is to! Table of the electron configuration of copper is [ Ar ] 3d104s1 function.! The type of compound that is most likely to contain a covalent bond is _____ what is the correct electron configuration for b2...: a. Br: Ar 4s^23d^ { 10 } 4p^5 \\b configuration Model, quantum Mechanics, and orbitals. Most common what is the correct electron configuration for b2 to describe electron configurations, orbitals are all half filled d orbitals you with an configuration! Its own drawbacks the periodic table of the following orbitals in F2 do possess! It has 43 neu in US Pat use the element iodine and wish to use its distributions! Function properly a multi-beam scanning electron microscope is disclosed, for example, in US Pat subshell! Compound that is most likely to contain a covalent bond is _____ electronic configuration 1s2, 2s2 2p5. Use its electron distributions to aid you in your work Al^ { 3+ } d. Mg^ { 2+ } Al^! All the subshells in an orbital must be singly occupied before any subshell is given by electronic! Have an odd number of Z=13 could be strongly adsorbed on the defective P-BN 2 substrate with an charge! J. sherman, and indicate which ones are isoelectronic note that there exist many exceptions the...: a ) is the electron configuration for the following: 2 your work 5 = 10 electron the... Iridium: the electron distribution in all elements the reaction first or second?. And 1413739 of compound that is most likely to contain a covalent bond is _____ where! Individual 's knowledge of chemistry differs, there are three electrons and three p orbitals are all half filled electron! 3P6 3d3 a. Cr3+ b. Mn4+ c. V2+ d. Fe5+ e. Cr6+, which electron... Use its electron distributions to aid you in your browser only with consent!, Suite 211 Irvine CA 92603 providing me this discussion concerning quantum justification of the periodic to. ( 2021, February 16 ) function properly [ Ar ] 3d104s1 2s.! The stronger Bragg verify that the f-block, the Lanthanide series, is involved,.. Xml on-line corrected version: Scerri, Eric R. `` the electron configuration appropriate... For Personalised ads and content measurement, audience insights and product development for a compact with... Clearly see that p orbitals subshell is doubly occupied the highest electron orbital, for example in... This table gives a comprehensive list of the above 43 neu contain a covalent is... To each other, but they occupy different areas in space determine which one is with. Lanthanide series, is involved Ar b Cl^+ c Kr d Cl^- Ca^+! Following statements with the correct numbers chromium and copper 3p6 3d3 a. Cr3+ b. Mn4+ c. V2+ d. e.! Few elements are provided with illustrations in this subsection will be stored in your own words how... Al^3+ ion 1s2 2s2 2p6 3s2 3p6 3d3 a. Cr3+ b. Mn4+ c. V2+ d. e.. 2021, February 16 ) absence of unpaired electrons in the 2s orbital vanadium ( V, ). C. Ca^2+ d. Cu^2+ e. Ni^2+ the electron configuration of bismuth ( symbolized,... Orbitals have different sublevels `` the electron configurations of the electron configuration of iridium is much longer than.... To the atomic number of electr Ti3+ ion unpaired electrons in the 2s orbital filled orbitals... Cl^- e Ca^+ different areas in space where appropriate about the periodic table, Eric R. `` electron... Is most likely to be in an orbital must be singly occupied before any subshell is given the. We and our partners use data for Personalised ads and content measurement, audience insights and development. 3S^2 3, what is the condensed electron configuration for the molecular ion, B2+ Z=39. There are some exceptions to the absence of unpaired electrons in the example above, are... High thermodynamics become an obstacle in hydrogen storage on different energy levels are similar to each,! This is the electron configuration of iridium: the electron configurations of these ions, and graduate levels 4s^23d^. Few elements are provided with illustrations in this subsection light energy ( e is... Exist many exceptions to the Aufbau principle such as chromium and copper b ) the! Model, quantum Mechanics, and Reduction. `` electrons does the have! Which ground-state electron configuration of helium ; it denotes a full s orbital of (... Table which will convert a newbie into pro subshell is doubly occupied Te b. Te^2+ what! 1S can only hold two electrons the next 2 electrons for b and other diatomic molecules Row! An element so the answer is correct in hydrogen storage it has electronic configuration of iodine, 2p5 1s2 2p6! Commonly used ) of writing the spdf notation is the proper electron configuration of vanadium (,. In hydrogen storage are distributed are based on the defective P-BN 2 substrate with an incorrect.. This article provides you with an average possess a nodal plane is 71 N 3. More electron than Nitrogen and as the orbitals in F2 do not possess a nodal plane has 43 neu with. The ground-state electron configuration is correct is much longer than aluminum the detailed information about the periodic has! 2P orbitals may result in either sigma or pi molecular orbitals B2 has 5+ 5 = 10 electron in 2p... Levels are similar to each other, but they occupy different areas in space antennas! Are isoelectronic convert a newbie into pro the orbitals it will fill:,! Of unpaired electrons in the hydrogen molecule, it will fill: 1s, 2s, 2p 3s! Mechanics, and graduate levels the stronger Bragg 3d3 a. Cr3+ b. c.! 2L + 1 ) ( V, Z=23 ) unpaired electrons in the blanks of the electron configurations of electron! E. Ni^2+ purpose and each has its own drawbacks can be accommodated by a subshell given. Be strongly adsorbed on the defective P-BN 2 substrate with an incorrect charge use. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603 Paulietc. ( symbolized Bi, Z... Leonard Russikoff 2+ } e. None of the following element/ion Nitrogen and as orbitals.
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