September 2018 2 23 Report
KIMIA - Yang bisa masukk, sama cara yaa :)
Jika konfigurasi atom
X = 1s2 2s2 p6 3s2 3p6 4s2 ,
Y = 1s2 2s2 2p4 ,
maka rumus molekul yg terbentuk antara X dan Y adalah. .
A. XY2
B. XY
C. X2Y
D. X2Y3
E. XY3
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