Question

The atomic symbols of nitrogen and oxygen are N and O, respectively. The chemical formula of a particular substance is NO2. Which of the following is a correct description of the substance?

A.
a compound made up of 2 nitrogen atoms and 2 oxygen atoms
B.
an element made up of 2 nitrogen atoms and 2 oxygen atoms
C.
a compound made up of 1 nitrogen atom and 2 oxygen atoms
D.
an element made up of 1 nitrogen atom and 1 oxygen atom

Answer 1

A compound made out of 1 nitrogen atom and 2 oxygen atoms

Answer 2

Answer:

The correct answer is option C.

Explanation:

Atomic symbol of nitrogen = N

Atomic symbol of oxygen = O

In the chemical formula = $NO_2$

The given molecular formula of compound indicate its one molecule is made up of 1 nitrogen atom and 2 oxygen atoms.