Question

Which one of the following statement is not true about an atom?

• A. Atoms are not able to exist independently.
• B. Atoms are the basic units from which molecules and ions are formed.
• C. Atoms are always neutral.
• D. Atoms are visible by naked eyes.

Answer 1

The correct option is D

Atoms are visible by naked eyes.

Atom is the ultimate particle of an element which may or may not have independent existence. The atoms of certain elements such as hydrogen, oxygen, nitrogen, etc. do not have independent existence whereas atoms of helium, neon, argon, etc. have independent existence. All elements are composed of atoms. Atoms are always neutral. They are the basic unit from which molecules and ions are formed.