Oxygen vs. Ozone

Oxygen
Ozone

Ozone (O3) is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic O2 (oxygen gas).

In order to understand the difference between oxygen and ozone, it is important to understand what an allotrope is. Allotropy (Gr. ἄλλος (allos), "other", and τρόπος (tropos), "manner") is a behavior exhibited by certain chemical elements that can exist in two or more different forms, known as allotropes of that element. In each allotrope, the element's atoms are bonded together in a different manner. Thus, allotropes are different structural modifications of an element.

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Oxygen

Ozone

Introduction (from Wikipedia) Oxygen (pronounced /ˈɒksɨdʒɨn/, OK-si-jin, from the Greek roots ὀξύς (oxys) (acid, literally "sharp", from the taste of acids) and -γενής (-genēs) (producer, literally begetter) is the element with atomic number 8. Ozone (O3) is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic O2. Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals.
Molecular formula O2 O3
Appearance transparent bluish colored gas
Odor Odorless Pungent. Human noses can identify ozone gas at 10 ppm.
Melting point 54.36 K, -218.79 °C, -361.82 °F 80.7 K, −192.5 °C
Boiling point 90.20 K, -182.95 °C, -297.31 °F 161.3 K, −111.9 °C
Density (0 °C, 101.325 kPa) 1.429 g/L 2.144 g/L (0 °C), gas

edit Differences in properties

Both diatomic ozone (O2) and triatomic ozone (O3) are made up of oxygen atoms but they have different chemical and physical properties.

edit Usefulness of oxygen vs ozone

While animals need oxygen to breathe, ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals. The ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface.

edit Presence of ozone and oxygen on the Earth

Ozone is present in low concentrations throughout the Earth's atmosphere. There is a layer of ozone in the upper atmosphere. Oxygen, on the other hand, is mostly found in the lower layers of the atmosphere. About 20% of the atmosphere is oxygen.

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Anonymous comments (1)

January 28, 2013, 3:49pm

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