How does the atomic size vary on moving down a group?
Atomic size: Atomic size is the distance between the centre of the nucleus of an atom and its outermost shell.
Trends of atomic size in group-
(a) How does the chemical reactivity of alkali metals vary on going down in group 1 of the periodic table?
(b) How does the chemical reactivity of the halogens vary on going down in group 17 of the periodic table?
How and why does the atomic size vary as you go: 1. From left to right across a period? 2. Down a group? [3 MARKS]
why does the atomic size suddenly increase on reaching the 18th group even though we know that the atomic size decreases on moving across the group?
How does metallic character of elements vary on moving down a group?