Question

Which one among the following statements about atoms is not correct?

• A. Atoms always combine to form molecules
• 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 and touch

Hint:

Noble gases are examples of atoms that exist independently and do not usually form molecules.

Answer 1

The Correct Option is A

Step 1: Analyze statement (A). Atoms do not always combine to form molecules. Some atoms exist independently, such as noble gases (He, Ne, Ar). Hence, statement (A) is not correct. Step 2: Analyze statement (B). Atoms are the fundamental building blocks from which molecules and ions are formed. This statement is correct. Step 3: Analyze statement (C). An atom is electrically neutral because it contains equal numbers of protons and electrons. This statement is correct. Step 4: Analyze statement (D). Atoms combine in large numbers to form matter that we can see, feel, and touch. This statement is correct. Step 5: Final conclusion. The incorrect statement is \(\boxed{\text{(A)}}\).