MCQ Questions for ICSE Class 7 Chemistry Atomicity Of Elements And Compounds With Answers

O₂ is a diatomic molecule.

Element containing more than 3 atoms.

Positive charged particle inside the nucleus.

No. of electrons = No. of protons

All these elements contain one atom.

Diatomic molecule is one which contains two atoms.

Recall the definition of the terms given in the option.

Monoatomic atom is one whose atomicity is one.

Polyatomic element is one which contains more than 3 atoms.

Argon is a non reactive noble gas.