Jawabanmu

2014-09-04T20:28:55+07:00
A.(kr),5s2,4d10,5p5
b.(ar),4s2,3d10,4p6
c.(ar),4s2,3d10,4p3
d.1s2,2s2,2p6,3s2,3p2
e.(ar),4s2,3d10,4p1