234k views
0 votes
Which of the following is not an example of a molecule?

A) Cl2
B) H2
C) CH4
D) He

User Mubin
by
7.9k points

1 Answer

3 votes

Final answer:

He (helium) is not an example of a molecule because it exists as individual atoms rather than being bonded to other atoms. In contrast, Cl₂, H₂, and CH₄ are all examples of molecules because they consist of multiple atoms bonded together.

Step-by-step explanation:

The option that is not an example of a molecule is D) He. A molecule is a group of two or more atoms bonded together, which means that they share or exchange electrons. Examples of molecules include H₂O (water), NH₃ (ammonia), and CH₄ (methane), where multiple atoms are held together by covalent bonds. On the other hand, He (helium) is an inert gas with a stable electronic configuration and exists as individual atoms, not bonded to other atoms; hence it is not a molecule but an atomic element.

To further clarify:

A) Cl₂ represents a chlorine molecule consisting of two chlorine atoms.

B) H₂ represents a hydrogen molecule with two hydrogen atoms.

C) CH₄ represents a methane molecule composed of one carbon atom and four hydrogen atoms.

These are all true molecules as they consist of more than one atom chemically bonded together.

User Ganesh Negi
by
8.5k points

No related questions found