Question

The given table shows the elements with the same number of electrons in its valence shell.

Elements	$A$	$B$	$C$
M.P.	$63.0$	$180.0$	$97.0$

State:

(ii) Arrange them in order of increasing metallic character.

Answer 1

The elements $A,B,C$ in a group can be arranged as shown below.

Elements	$B$	$C$	$A$
M.P.	$180.0$	$97.0$	$63.0$

• Down the group the melting point of metals decreases.
• Down the group, the metallic character increases. Therefore, the increasing order of metallic character of the metals will be $B<C<A$.