â‹„
â‹„
â‹„
â‹„
â‹„
â‹„
1
.
00
×
10
−
10
m
m
l
=
0
m
l
=
+1
1
s
2
1
s
1
2
s
1
1
s
1
2
p
1
1
s
1
3
d
1