TejaM
contestada

The WHITE numbers painted on the left side of the table will inform us of...

A. the number of valence electrons
B. the number of energy levels around the nucleus
C. the number of protons in the nucleus
D. the number of neutrons in the nucleus

Respuesta :

Answer:

a,this help to know the

period in which an element belong to,which also talks about the oxidation number or state of this uncombined element