1S22S22P63S23P63D6 => M
Câu 10: Ta cĩ:
M
3+:
1s
2
2s
2
2p
6
3s
2
3p
6
3d
6
=> M : 1s
2
2s
2
2p
6
3s
2
3p
6
3d
7
4s
2
T ng đài t v n: 1900 58-58-12 - Trang | 1 -X
-
: 1s
2
2s
2
2p
6
3s
2
3p
6
3d
10
4s
2
4p
6
=> X =1s
2
2s
2
2p
6
3s
2
3p
6
3d
10
4s
2
4p
5