The number of valence electrons in an element with electron configuration 1s2 2s2 2p6 3s2 3p4 is

The number of valence electron in the element is 6 electrons

Valence electron(s) are the electrons located on the outermost shell of an atom.

From the question given above, we obtained:

Electronic configuration => 1s² 2s²2p⁶ 3s²3p⁴

Total electron in valence shell = 2 + 4

Therefore, the number of valence electron in the element is 6 electrons.

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