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Na : +1
S : +4
O : -2
caranya susah dijelasin.
semoga membantu
O3= 3. -2 = -6
S2=-6+2+S2= 0
S2= 6-2=4 ----> S=4/2=2
jadi biloks.
Na = +1. (golongan IA)
O = -2 (golongan VIA)
S= +2