Question

Which of the following 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 matter that we can see, feel or touch.

Answer 1

The correct option is A

Atoms are not able to exist independently

Explanation for the correct option:

Option A: Atoms cannot exist independently is not the actual statement because the noble gases exist in monoatomic form. Hence, they exist in the free state.

Explanation for the incorrect option:

Option B: Atoms are the building blocks of matter. Hence they are the basic units from which molecules and ions are ions. Therefore, the statement is true.

Option C: Atoms do not contain any charge. So, they are neutral.

Option D: When atoms combine in large numbers, then they exist in the form of matter. It can be seen, felt, and touched.

Hence, option A is the correct answer.