"Atoms are always neutral in nature." this statement is not true about an atom. Option C is the right choice.
The statement that is not true about an atom is:
Atoms are always neutral in nature.
While most atoms are neutral, they can gain or lose electrons, becoming positively or negatively charged ions. This negates the statement's claim of constant neutrality.
Here's why the other statements are true:
Atoms are not able to exist independently.
While some noble gas atoms can exist independently for a time, most atoms readily combine with other atoms to form molecules or compounds.
Atoms are the basic units from which molecules and ions are formed.
This is a fundamental tenet of chemistry and is universally accepted.
Atoms aggregate in large numbers to form the matter that we can see, feel or touch.
This is also true, as all the physical objects we interact with are made up of countless atoms bound together.
Therefore, the statement "Atoms are always neutral in nature" is the one that is not true about an atom. Option C is the right choice.
Question:-
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.