Question

smallest atom ?
$\infty \cos(79) \times$
​

Answer 1

Answer:

hydrogen atom is the smallest

Answer 2

Explanation:

hydrogen atom

If 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.

hope it helps you

please mark it as brainlist