Question

Identify the number of valence electrons for these elements on the table.

Na
Mg
Al
Si
P
S
Cl
Ar
K
Ca

Answer 1

Na - 1 valence electron
Mg - 2 valence electrons
Al - 3 valence electrons
Si - 4 valence electrons
P - 5 valence electrons
S - 6 valence electrons
Cl - 7 valence electrons
Ar - 8 valence electrons
K - 1 valence electron
Ca - 2 valence electrons