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how many valence electrons are there from this communication 1s2 2s 2 2 2p6 3s2 3p6 4s2

A.6 B.2 C.5 D. 3​


Sagot :

Answer:

The number of electrons in an atom's outermost shell are called valance electrons that participate in the formation of a chemical bond. The atom with electronic configuration 1s22s22p63s23p2 has 4 valance electrons in outermost shell.

I think letter b

Explanation:

2 Kase para Sakin