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An atom has the following electron configuration. 1s^2 2s^2 2p^6 3s^2 3p^4 How any valence electrons does this atom have?

Respuesta :

Answer:

6.

Explanation:

The valence electrons are those in the outer  shells  3s and 3p,  so it is 2 + 4 = 6.

dvelasquez90

Answer:

6 electron valence

Explanation:

the last shell corresponds to the valence shell. so the electrons contain in there are the electrons valence. 2 for s orbital and 4 for p orbital.