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The electrons identified by quantum numb...

The electrons identified by quantum numbers n and l :-
(a) n=4, l=1 (b) n=4, l=0 (c ) n=3, l=2 (d) n=3, l=1
Can be placed in order of increasing energy as

A

`(4) lt (2) lt (3) lt (1)`

B

`(2) lt (4) lt(1) lt(3)`

C

`(1) lt (3) lt (2) lt (4)`

D

`(3) lt (4) lt (2) lt (1)`

Text Solution

Verified by Experts

The correct Answer is:
A
The electrons can be identified from their quantum number.
These are : ltbr. (1) 4p (2) 4s (3) 3d (4)3p
The increasing order of energy is :
`3p lt 4s lt 3d lt 4p`
or ` (4) lt (2) lt (3) lt(1)`
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