Chemistry, asked by saleem2738, 1 year ago

Be(4),Mg(12)and Ca(20) belong to the same group in the modern periodic table name the period of each element and write the electronic configuration of each element

Answers

Answered by kaif49

12

Be (2,2) period 2 Mg (2,8,2) period 3 Ca (2,8,8,2) this belongs to period 3

Answered by Nishtha2003

7

be=2 2.
mg=2 8 2.
ca=2 8 8 2

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