Question

1. an ________________ is a charged particle which is created when atoms lose or gain electrons.

Explanation:

An ion is formed when an atom loses or gains electrons. When an atom loses electrons, it becomes a positively - charged ion (cation). When it gains electrons, it becomes a negatively - charged ion (anion). This process of electron loss or gain is a fundamental concept in chemistry related to the formation of ionic compounds and chemical bonding.

Answer:

ion