The answer to the question is The average bond in O2 is shorter and stronger than that of O3.
The chemical element with the atomic number 8 and symbol O is called oxygen. It belongs to the periodic table's chalcogen group, is a very reactive nonmetal, and an oxidizing agent that easily produces oxides with most elements as well as other compounds. After hydrogen and helium, oxygen is the third most plentiful element in the universe and the most abundant element on Earth.
Two atoms of the element combine to generate dioxygen, a colorless and odorless diatomic gas with the formula O2, at ordinary temperature and pressure. The Earth's atmosphere is currently made up of 20.95% diatomic oxygen gas, though this has fluctuated significantly over a very long time. In the form of oxides, oxygen makes up over half of the Earth's crust.
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