Question

Match the element with number of valence electrons

0
С
Ga
As
At
K
H
He
:: 5
:: 8
.: 1
:: 2
:: 7
:: 6
.: 3

Answer 1

Oxygen-O = 6

Carbon C = 4

Gallium G = 3

Astatine A = 7

Arsenic As = 5

Potassium K = 1

Hydrogen H = 1

Helium H = 2

Step-by-step explanation: