Liluzitrey Liluzitrey

07-06-2017
Chemistry

contestada

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

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JoshEast JoshEast

08-06-2017

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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osoriovanessa472 osoriovanessa472

15-12-2021

Answer:

7

That's your answer!!

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