Question

multiple choice question
when a sodium atom loses an electron, it becomes a sodium ______.
isomer
ion
compound
molecule

Explanation:

An atom that gains or loses electrons becomes an ion. When a sodium atom loses an electron, it has a net positive charge and is called a sodium ion. Isomers are compounds with the same formula but different structures. A compound is made of two or more different - element atoms bonded together. A molecule is a group of two or more atoms held together by chemical bonds.

Answer:

B. ion