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I want to know Calcium has 2,8,8,2 whereas next element Scandium has 2,8,9,2.How is this possible,I couldn't understand.Please say with respect to Valency shells.

Asked by RAHUL rd 2nd March 2015, 12:00 PM
Answered by Expert
Answer:

Atomic No.

Element

K

L

M

N

O

P

 

 

1

2

3

4

5

6

 

 

s

s p

s p d

s p d f

s p d f

s p d f

20

Ca

2

2 6

2 6 -

2

 

 

21

Sc

2

2 6

2 6 1

2

 

 

Answered by Expert 2nd March 2015, 6:07 PM
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