How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵ A) 1 B) 3 C) 5 D) 7 E) 9

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The given electron configuration represents a total of 7 valence electrons. The configuration ends with the 2p orbital having 5 electrons (2p^5), which indicates the presence of 5 valence electrons in the 2p orbital, plus the 2 electrons in the 2s orbital, totaling 7 valence electrons.

How Many Total Valence Electrons Are Represented in the Following