Question

7 multiple choice 1 point a cation is an atom that has________. (think of how you make a cation) lost electrons gained electrons lost neutrons gained neutrons 8 multiple choice 1 point cl^{-1} has done what? gained one neutron gained one electron lost one neutron lost one electron

Explanation:

Question 7

A cation is a positively - charged ion. An atom becomes a cation when it loses electrons. When an atom loses electrons, the number of protons (which are positively charged) becomes greater than the number of electrons (which are negatively charged), resulting in a net positive charge. Gaining electrons would result in an anion (negatively charged ion), and neutrons have no charge, so losing or gaining neutrons does not create a cation.

The chloride ion $\text{Cl}^{-1}$ has a negative charge. A neutral chlorine atom has an equal number of protons and electrons. To become a chloride ion with a - 1 charge, the chlorine atom must gain one electron. Gaining or losing neutrons does not change the charge of the ion (neutrons are neutral), and losing an electron would result in a positive charge, not a negative one.

Answer:

A. lost electrons

Question 8