Question

wWhen we move down in periodic table how does the following change:
a) Atomic size
b) valency
c) Electronegativity.

Answer 1

atomic size increases
valency is same in a vertical row
Electro negativity is different for different element there is no specific trend about this

Answer 2

a) atomic size increases down the group.
b)valency doesnt change while going down the group.
c)electronegativity decreases down the group.