Question

Arrange $Si,Be,Mg,Na$ and $P$ in the increasing order of metallic character:

• A. $P<Be<Si<Mg<Na$
• B. $P<Si<Be<Mg<Na$
• C. $Si<P<Mg<Na<Be$
• D. $Na<Mg<Be<Si<P$

Answer 1

Answer: (B)

$P<Si<Be<Mg<Na$

metallic character increases down the group and decreases along the period as we move left to right. Hence the order of increasing metallic character is

P to Na.