Question

Potassium atoms have 19 protons and electrons. Most potassium atoms contain 20 neutrons. How would the potassium atom change if another atom took away one of the potassium atom's electrons?

The potassium atom would become a negative ion with a charge of -1.

None of these choices are correct.

The potassium atom would become a potassium ion with a charge of +1.

The mass number of potassium would change from 39 to 38.

Answer 1

The potassium atom would become a negative ion with a charge of -1.

Step-by-step explanation:

If another atom took away one of the potassium atom's electrons, the potassium atom would have one more proton than electron, resulting in a net positive charge. The atom would become a negative ion, also known as an anion, with a charge of -1.