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

Fact 2: Negative charges are attracted to positive charges.

Given the two facts above, answer the question "What can be done to a neutral atom to make positive charges attractive to it?" with the following options: 
- Remove an electron
 - It gets heated up
 - Cool the atom
 - flow of electrons
 - Inject hormones
 - Accelerate the atom
 - adding heat
 - electrically


 

 Remove an electron        