Chemistry, asked by yuviex05, 6 hours ago

Elements A and B have atomic number 9, 20 respectively. Give the electronic configuration of them and formula formed by them.

Answers

Answered by kanjisudipto259

1

Explanation:

electronic configuration of atomic number 9 ( fluorine )= 2,7

electronic configuration of atomic number 20(calcium )= 2,8,8,2

formula = F2Ca

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