SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an element
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a mixture
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a compound
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None of the above
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Detailed explanation-1: -Oxygen is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is O, and its atomic number is 8, which means that an oxygen atom has eight protons in its nucleus. Oxygen is a gas at room temperature and has no colour, smell or taste.
Detailed explanation-2: -Oxygen is a chemical element with an atomic number of 8 (it has eight protons in its nucleus). Oxygen forms a chemical compound (O2) of two atoms which is a colorless gas at normal temperatures and pressures.
Detailed explanation-3: -At standard temperature and pressure, oxygen is a colorless, odorless, and tasteless gas with the molecular formula O. 2., referred to as dioxygen.
Detailed explanation-4: -Oxygen is a chemical element with symbol O and atomic number 8. Classified as a nonmetal, Oxygen is a gas at room temperature.
Detailed explanation-5: -O is a singular oxygen atom. O2 is a molecule made of two oxygen molecules. Our atmosphere is made of mostly O2, which our bodies have evolved to breathe.