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Which of the follwing forms covalent com...

Which of the follwing forms covalent compound?

A

Ca

B

Mg

C

Sr

D

Be

Text Solution

Verified by Experts

The correct Answer is:
D
Except for the first elements of groups, IA, IIA, and IIA, the atoms usually form ionic bonds. The number of unpaired electrons in the Lewis symbols for the atoms of elements in these groups equals the group numbers.
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