|
The lanthanide ion that would show colour is |
|||
|
(a) |
Gd3+ |
(b) |
Lu3+ |
|
(c) |
La3+ |
(d) |
Sm3+ |
|
The lanthanide ion that would show colour is |
|||
|
(a) |
Gd3+ |
(b) |
Lu3+ |
|
(c) |
La3+ |
(d) |
Sm3+ |
Sm+3 = partially filled f orbital = 4f5
Sm = 4f66s2
Lu+3 =4f14 colorless.