Question

A group of atoms of different elements functioning together as a single unit and carrying a charge is known as a ____________.

Answer 1

Ion : An Ion can be defined as an atom or molecule having a positive or negative charge on it. Cation and Anion are the two types of ions.

Polyatomic ions: Polyatomic ions are ions that contain more than one atom.

• Polyatomic ions are created when a number of atoms come together to form a group.
• It is held together by covalent bonds.

Examples of polyatomic ions:

• $$\begin{gathered} {\mathrm{NH}}_4^{+},(\mathrm{Ammonium}\mathrm{ion}) \\ {\mathrm{OH}}^{–}(\mathrm{Hydroxide}\mathrm{ion}), \\ {\mathrm{SO}}_4^{2-}(\mathrm{Sulphate}\mathrm{ion}), \end{gathered}$$

Thus, A group of atoms of different elements functioning together as a single unit and carrying a charge is known as a Polyatomic ions .