Fact 1: If a neutral atom loses an electron then an atom with a negative charge will be formed.

Fact 2: Ions are neutral atoms.

Given the two facts above, answer the question "what can an ion have if it loses an electron?" with the following options: 
- It becomes dormant
 - negative charge
 - kinetic energy
 - energy barrier
 - heat energy
 - Electrical energy
 - hydrogen and oxygen
 - activation energy


 

  negative charge       