April 2019 1 6 Report
Buatlah konfigurasi elektron dari unsur berikut dan tentukan elektron valensinya!
1)a.2He. 2) a.9F
b.10Ne. b.17Ce
c.18Ar. c.35Br
d.36Kr d.53I
e.54Xe e. 81Al
Mohon dijawab ya esok mau dikumpul :)
f.86Rn

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