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

Fact 2: Ice crystals that are formed have a negative charge.

Given the two facts above, answer the question "Ice crystals are formed when a neutral atom does what?" with the following options: 
- adding heat
 - vaporization
 - flow of electrons
 - loses an electron
 - It remains dormant
 - It gets heated up
 - heating liquids
 - evaporation


 

    loses an electron     