An atom that has lost an electron becomes a:

## The reasoning Think of an atom like a balanced scale. Normally, the number of **protons** (positive charges in the nucleus) equals the number of **electrons** (negative charges orbiting around). When you remove one electron, you have *more protons than electrons* left. For example: A sodium atom has 11 protons (+11) and 11 electrons (−11). Total charge = 0 (neutral). Remove 1 electron → Now you have 11 protons (+11) and 10 electrons (−10). Total charge = +1. This positively charged atom is called a **positive ion** or **cation**. The principle: **Charge = protons − electrons**. Losing electrons makes you positive! ## Why the wrong options tempt you **A)** Students confuse "losing" with "gaining negative" — but losing a negative charge actually makes you *more positive*. **C)** Neutrons are neutral particles in the nucleus — nothing to do with losing electrons. **D)** Molecules form when atoms *bond together*, not when they lose electrons. ## Quick takeaway **"Lose electrons, go positive — you're left with extra protons!"** Remember: electrons are negative, so losing them = becoming positive. 🔋