tyneciabailey0724 tyneciabailey0724

24-09-2020
Biology

contestada

For an atom of a main group element, the number of valence electrons is equal to..

A its number of core electrons.
B the principal quantum number of its outer shell
C. its period
number.
D. its group number.
E. eight minus its group number.

Respuesta :

madison64920 madison64920

24-09-2020

Answer:

D. it's group number

Explanation:

valence electrons are the electrons on the outer shell and thats where the group number comes from im pretty sure

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