Question

The correct order of density is

• A. $Be > Mg > Ca > Sr$
• B. $Sr > Ca > Mg > Be$
• C. $Sr > Be > Mg > Ca$
• D. $Be > Sr > Mg > Ca$

Answer 1

Answer: (C)

$Sr > Be > Mg > Ca$

Answer 2

In II'A' group density decreases down the group till Ca and after that it increases. Correct order of density is
Sr>Be>Mg>Ca