The number of valence electrons in an element with electron configuration 1s²2s²2p⁶3s²3p⁴ is A)2. B)4. C)6. D)8. E)16.

Name: The number of valence electrons in an element with electron configuration 1s 2 2s 2 2p 6 3s 2 3p 4 is A)2. B)4. C)6. D)8. E)16.
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Question

Quizplus · Accepted Answer

The valence electrons are the electrons in the outermost shell of an atom. The electron configuration given has 3s²and 3p⁴ in the outermost shell, so there are 6 valence electrons.

The Number of Valence Electrons in an Element with Electron