49
Back To Home
ANSWER……
ELEMENT
ATOMIC NUMBER
SUBSHELL ELECTRONIC CONFIGURATION
THE SUBSHELL TO WHICH THE LAST ELECTRON IS ADDED
BLOCK
3
Li
3
1S
2
2S
1
s
S
12
Mg
12
1S
2
2S
2
2P
6
3S
2
s
s
7
N
7
1S
2
2S
2
2P
3
p
p
21
Sc
21
1S
2
2S
2
2P
6
3S
2
3p
6
3d
1
4s
2
d
d
Previous