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Answer
The Periodic Table lists just the symbol for one atom of each element.
Explanation:
The oxygen we breathe consists of molecules.\
Each molecule consists of two oxygen atoms joined together, so we write its formula as$$O_{2}$$
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Similar Questions
Q
1
Why is oxygen written as $$O_2$$? Can anyone please explain to me why it is that in the periodic table oxygen is written as just $$O$$, but elsewhere it is written as $$O_2$$?
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Q
2
S + O2 → SO2
In the above reaction oxygen is written as O2 because it is diatomic.
But why sulphur is written as S not S8 because atomicity of sulphur is 8?
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Q
3
Oxygen is written as 'o' or 'o2'
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Q
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In the following chemical equation, why oxygen is written as 3O2 whereas it should be written as O2? And why the letter 's' is written in the bracket?Also explain this chemical equation in brief!
4Al(s) + 3O2(g) =2Al2O3(s)
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Q
5
Why is oxygen written as ?
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