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

Kathy Robinson

in Chemistry

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Daniel King on October 25, 2018

The element that is above 7 (OPTION D) the valence electrons. This is because in the second line of command, the two electrons occupy the orbital S of the second command line (2s2)and five occupy the orbital P (2p⁵) , for a total of 7 valence electrons (1s2 2s2 2p⁵)


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