Question

If Iron ($Fe$) is monoatomic then which of the following is/are correct?

• A. Radical and Cation.
• B. Anion and Cation.
• C. Cation and Anion.
• D. Anion and Radical.

Answer 1

Answer: (A), (B)

The correct options are
A

Radical and Cation.

B

Anion and Cation.

Atomicity is defined as the total number of atoms present in an element or a compound.

Example:- (a) Iron ($Fe$), Helium ($He$) etc., have only one atom so they are monoatomic.

(b) Oxygen ($O_2$), Chlorine ($C{l}_2$), Hydrogen ($H_2$) etc., have two atoms so they are diatomic.

(c) Water ($H_{2}O$), Sulphur dioxide ($S{O}_2$) etc., have three atoms so they are triatomic.

(d) Ammonia ($N{H}_3$), Phosphorous trichloride ($PC{l}_3$) etc., have four atoms so they are tetratomic or polyatomic as it has more than three atoms.