Multiple choice

How many oxygen atoms are present in an ozone molecule?

  1. 1

  2. 2

  3. 3

  4. 4
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ozone is a molecule made of three oxygen atoms, giving it the chemical formula O3. This distinguishes it from regular oxygen which has only two oxygen atoms (O2). Ozone forms the ozone layer in the upper atmosphere.

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