Question

Write scientific reasons:
Atomic radius goes on decreasing whil.
going from left to right in a period.​

Answer 1

Answer:

Atomic Radius to right in a radius decreases while going to left to right in a period.This is because when we move left to right in a period atomic number increases thus the valence electron feels more attraction towards the nucleus.thus size deceases.

Also effective nuclear charge increases due to which size decreases.

Answer 2

Answer:

Atomic radius goes on decreasing while going from left to right in a period because of an atomic number of the elements increases which means the number of protons and electrons in the atoms increases(the extra electrons being added to the same shell).