atomic no of sodium and calcium ara 11and 20 respectively which group and period belong
Answers
Answered by
4
Group :
Sodium- 1st group
Calcium- 2nd group
Period:
Sodium- 3rd period
Calcium- 4th period
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Answered by
3
1)calcium =group 2, period =4 ....2) sodium= group1 , period =3
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