How does the metallic character of elements vary on moving from
- left to right in a period,
- from top to bottom in a group
of the Modern Periodic Table ? Give reason for your answer.
(i) Left to right metallic character decreases
Reason: Effective nuclear charge increases / tendency to loose electrons decrease / electro-positivity decreases
(ii) Top to bottom metallic character increases
Reason: Size of atom increase / tendency to loose electron increases