Question

When a hydrogen atom loses an electron it can be called a cation, a proton ,and hydrogen ion why?

Answer 1

The definition of a proton is a subatomic particle with an electric charge of +1 e\(^-\), so H\(^+\) is a bare nucleus with one proton and no electrons.

Answer 2

an ion, by definition is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Answer 3

You can find these definitions in a chemistry book. That's what I did.