what happens when an atom loses an electron?
Answer by Abby rocks. Confidence votes 22. When a neutral atom loses an electron, it becomes a positive ion .(apex) An ION is a charged atom. And in any random atom, when the nucleus emits an electron, the mass number remains the same but the atomic number goes up by 1.
Split and merge into it. Answer by 25718. Confidence votes 137. When an atom loses an electron, it is considered a positively charged ion, also called an anion not a cation. No actually it is called a cation.