Question

What is an ion?

A. An atom that differs in mass from another atom of the same
element
B. An atom that has lost or gained 1 or more protons
OC. An atom that has lost or gained 1 or more electrons
D. An atom that has lost or gained 1 or more neutrons
SUBM

Answer 1

An ion is an atom that has lost or gained 1 or more electrons. When an atom loses electrons, it becomes a positive ion (cation), and when it gains electrons, it becomes a negative ion (anion).

Step-by-step explanation:

An ion is an atom that has lost or gained 1 or more electrons. When an atom gains electrons, it becomes a negative ion (anion), while when it loses electrons, it becomes a positive ion (cation). For example, if a sodium atom loses one electron, it becomes a sodium ion with a positive charge, written as Na+.

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