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storchak [24]
3 years ago
8

How many valence electrons are represented in the following electron configuration? 1s22s22p5

Chemistry
1 answer:
dalvyx [7]3 years ago
4 0
The element above has 7 (OPTION D) valence electrons.  This is because on the second shell, two electrons occupy the S orbital of the second shell (2s²)and five occupy the P orbital (2p⁵) , for a total of 7 valence electrons (1s² 2s²  2p⁵)
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