Question

Considering the elements $Ca,Ge,Mg,Ga$ and $K$, the correct increasing order of their metallic character is:

• A. $Ca<Ge<Mg<Ga<K$
• B. $Ca<Ge<K<Mg<Ga$
• C. $Ge<Ga<Mg<Ca<K$
• D. $Ge<Ga<K<Ca<Mg$

Answer 1

The correct option is C $Ge<Ga<Mg<Ca<K$

Metallic character increases down the group and decreases along the period.
K being an alkali metal and having a configuration of $n{p}^{6}n{s}^1$ will readily lose electron and attain noble gas configuration.
Ga and Ge being element of group 13 and group 14 respectively will have the least metallic character.