What is an ion made of two or more atoms called?

What is an ion made of two or more atoms called?

• A. Ionic Compound
• B. Polyatomic Ion
• C. Lewis Structure
• D. Metallic Bonding

Answer: (B)

An ion made of two or more atoms is a polyatomic ion. It’s a charged species where multiple atoms are covalently bonded together and the entire group carries a net charge, acting as a single unit in reactions. This distinguishes it from monatomic ions like Na+ or Cl−, which are single atoms with a charge. Common examples include ammonium (NH4+) and sulfate (SO4^2−). The other terms refer to different ideas: an ionic compound is a whole substance made of ions held together by electrostatic forces, a Lewis structure is a diagram showing valence electrons, and metallic bonding describes the bonding in metals with delocalized electrons.

An ion made of two or more atoms is a polyatomic ion. It’s a charged species where multiple atoms are covalently bonded together and the entire group carries a net charge, acting as a single unit in reactions. This distinguishes it from monatomic ions like Na+ or Cl−, which are single atoms with a charge. Common examples include ammonium (NH4+) and sulfate (SO4^2−).

The other terms refer to different ideas: an ionic compound is a whole substance made of ions held together by electrostatic forces, a Lewis structure is a diagram showing valence electrons, and metallic bonding describes the bonding in metals with delocalized electrons.