Increase in atomic size down the group is due to

Question

Increase in atomic size down the group is due to (A) increase in number of electrons (B) increase in number of protons and neutrons (C) increase in number of protons (D) increase in number of protons, neutrons and electrons

Tardigrade Admin · Accepted Answer

In a given group, atomic size increases due to addition of extra shell which outweighs the effect of increased nuclear charge. Number of shells increases with addition of extra electrons. Hence, increase in atomic size down the group is due to increase in number of electrons.

Q. Increase in atomic size down the group is due to

increase in number of electrons

increase in number of protons and neutrons

increase in number of protons

increase in number of protons, neutrons and electrons

In a given group, atomic size increases due to addition of extra shell which outweighs the effect of increased nuclear charge. Number of shells increases with addition of extra electrons. Hence, increase in atomic size down the group is due to increase in number of electrons.