Write down the electronic configuration of first thirty element according to K,L,M.. shells.

Asked by Prachi Panwar | 8th Jun, 2013, 05:50: PM

Expert Answer:

Z

 

Symbol

 

Electronic Configuration

 

Another way

 

1

 

H

 

1s1

 

K1

2

He

1s2

K2

3

Li

[He] 2s1

K2 L1

4

Be

[He] 2s2

K2 L2

5

B

[He] 2s2 2p1

K2 L3

6

C

[He] 2s2 2p2

K2 L4

7

N

[He] 2s2 2p3

K2 L5

8

O

[He] 2s2 2p4

K2 L6

9

F

[He] 2s2 2p5

K2 L7

10

Ne

[He] 2s2 2p6

K2 L8

11

Na

[Ne] 3s1

K2 L8 M1

12

Mg

[Ne] 3s2

K2 L8 M2

13

Al

[Ne] 3s2 3p1

K2 L8 M3

14

Si

[Ne] 3s2 3p2

K2 L8 M4

15

P

[Ne] 3s2 3p3

K2 L8 M5

16

S

[Ne]3s2 3p4

K2 L8 M6

17

Cl

[Ne] 3s2 3p5

K2 L8 M7

18

Ar

[Ne] 3s2 3p6

K2 L8 M8

19

K

[Ar] 4s1

K2 L8 M8 N1

20

Ca

[Ar] 4s2

K2 L8 M8 N2

21

Sc

[Ar] 3d1 4s2

K2 L8 M9 N2

22

Ti

[Ar] 3d2 4s2

K2 L8 M 10 N2

23

V

[Ar] 3d3 4s2

K2 L8 M 11 N2

24

Cr

[Ar] 3d5 4s1

K2 L8 M 13 N1

25

Mn

[Ar] 3d5 4s2

K2 L8 M13 N2

26

Fe

[Ar] 3d6 4s2

K2 L8 M14 N2

27

Co

[Ar] 3d7 4s2

K2 L8 M15 N2

28

Ni

[Ar] 3d8 4s2

K2 L8 M 16 N2

29

Cu

[Ar] 3d10 4s1

K2 L8 M18 N1

30

Zn

[Ar] 3d10 4s2

K2 L8 M18 N2

 

Answered by  | 9th Jun, 2013, 01:24: PM

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