Question

which is the atom having the smallest size.​

Answer 1

Answer:

hydrogen atom

hydrogen atomIf by "biggest" and "smallest", you mean mass (which is a measure of how much matter is there), then the smallest is the hydrogen atom with one proton and one electron. Since electrons are about 2000 times less massive than protons (and neutrons), then the mass of an atom is mostly from the protons and neutrons.

Answer 2

Answer:

HELIUM

Explanation:

Helium is the atom having the smallest size.

The force between the two protons and two electrons pull the electron shell closer than the lone electron and lone proton in a Hydrogen atom.

HOPE THIS IS HELPFUL..PLEASE MARK ME AS BRAINLIST !!