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How many valence electrons are represented in the following electron configuration? 1s22s22p5 A. 2 B. 4 C. 5 D. 7
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How many valence electrons are represented in the following electron configuration? 1s22s22p5

A. 2
B. 4
C. 5
D. 7

User Anigif
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4 votes

Answer:

7

That's your answer!!

User Kamil Janowski
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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)
User Woytech
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