The number of oxygen atoms in oxygen molecules is equalto the number of atoms in ozone, true, false, The element whose molecule consists of two atoms is, mercury oxide, bromine, sodium chloride, sodium, All of the following gases molecules are mono atomic except ........, helium molecule, argon molecule, oxygen molecule, neon molecule, which of the following is considered from molecules of poly atomic elements, H2, Na, Hcl, O3

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