Final answer:
An atom that gains electrons becomes a negative ion, like chlorine becoming Cl¯. Chemical bonds where one atom loses an electron to form a positive ion and the other gains an electron to become a negative ion involve cations and anions.
Explanation:
An atom that gains electrons is called a(n) negative ion
When an atom gains electrons, it becomes negatively charged and is termed as a negative ion. For example, chlorine gains one electron to become Cl¯.
In a chemical bond where one atom loses an electron to form a positive ion and the other gains an electron to form a negative ion, the resulting ions are called cations and anions, respectively.
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