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MDCAT
Physics
2021

Physics · Nuclear Physics

Work through this past-paper style MCQ, then read the full explanation. Practice more physics questions on mMCQ with adaptive practice and topic analytics.

Question

Ozone is an isotope of:

Options
  • A

    Oxygen

  • B

    Hydrogen

  • C

    Chlorine

  • D

    None of these options are correct

Explanation

Ozone is not an isotope of any element. Isotopes are atoms of the same element that have different numbers of neutrons. Ozone is a molecule that is made up of three oxygen atoms. The number of neutrons in each oxygen atom is the same, so ozone is not an isotope.

The chemical formula for ozone is O₃. It is a pale blue gas that is found in the Earth's atmosphere. Ozone is a very reactive molecule, and it is responsible for protecting the Earth from harmful ultraviolet radiation from the Sun.

The answer is none of these.  

Oxygen: Oxygen is an element that has three naturally occurring isotopes: 16O, 17O, and 18O. These isotopes have different numbers of neutrons, but they all have the same number of protons. Ozone is a molecule that is made up of three oxygen atoms, so it is not an isotope of oxygen.

Hydrogen: Hydrogen is an element that has three naturally occurring isotopes: 1H, 2H, and 3H. These isotopes have different numbers of neutrons, but they all have the same number of protons. Ozone is a molecule that is made up of three oxygen atoms, so it is not an isotope of hydrogen. 

Chlorine: Chlorine is an element that has two naturally occurring isotopes: 35Cl and 37Cl. These isotopes have different numbers of neutrons, but they all have the same number of protons. Ozone is a molecule that is made up of three oxygen atoms, so it is not an isotope of chlorine. 

Ozone is not an isotope of any element. Isotopes are atoms of the same element that have different numbers of neutrons. Ozone is a molecule that is made up of three oxygen atoms. The number of neutrons in each oxygen atom is the same, so ozone is not an isotope.

The chemical formula for ozone is O₃. It is a pale blue gas that is found in the Earth's atmosphere. Ozone is a very reactive molecule, and it is responsible for protecting the Earth from harmful ultraviolet radiation from the Sun.

The answer is none of these. 

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Tagged under Physics · Nuclear Physics · 2021