An atom of chlorine has several valence electrons in its
Natural selection it has to be 20 characters so disreguard the rest
The mean of 2,5,1,1,9,1,2 = 3
2+ 5+1+1+9+1+2 =21
21/7 = 3
Hope helps!-Aparri
D. Epidermis, dermis, hypodermis.
Cells need oxygen to break glucose to produce Energy required for doing several functions.
