How does an atom change if all of its electrons are removed?

The atom becomes positively charged is the correct answer.

Explanation:

Atoms have an equal number of protons( positively charged cations)and electrons(negatively charged anions) and if the atom loses an electron it becomes positively charged ions.

if all the electrons are removed, then the atom becomes positively charged cation because the charge on the protons overpower the charge of electrons.

When the atom loses or gains electron result in the formation of negative or positive ions.

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