How does metallic character vary among group 14 elements ? How is it related to ionisation energy ?

How does metallic character vary among group 14 elements ? How is it r

1.	How does metallic character vary among group 14 elements ? How is it related to ionisation energy ?
Answer» Solution :Carbon and silicon are non metals . Germanium is a METALLOID and tin and lead are metals. Metallic character increases from carbon to lead . The change from non metallic to metallic character is due to the increase in atomic size from carbon to lead . CONSEQUENTLY the ionsiationpotential favouring ionic bonding especiallywith oxidation STATE +2 , whereas carbon and silicon show +4 oxidaiton state forming covalent bonding with electron SHARING.