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Chemistry, 08.01.2022 14:40 nicollexo21

6) What is the electron configuration of an atom in its ground state with a total of seven valence electrons?
A. 1s2 2s2 2p6
B. 1s2 2s2 2p5
C. 1s2 2s2 2p8
D. 1s2 2s2 2p7

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