Which of the following statements 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 in nature
(d) Atoms aggregate in large numbers to form the matter that we can see, feel or touch.

AcademicChemistryNCERTClass 9

Correct Answer: (a) Atoms are not able to exist independently.

Explanation:  The atoms of only a few elements called noble gases (such as helium, neon, argon, etc.) are chemically unreactive and exist in the free state or independently.

Updated on 10-Oct-2022 13:30:05