The number of hydrogen atoms of present in a hydrogen molecule are 2.
H is the chemical formula for hydrogen. There are some elements with H in the chemical formula. But the have other letters too.
The chemical formula of carbon is C and the chemical formula of hydrogen is H.
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The chemical formula for hydrogen chlorite is HClO2.
The chemical formula for Hydrogen gas is H2
The Chemical Formula for Hydrogen Chloride is HCl.
As many as you like!!!!! Different substances have a different number of hydrogen atoms in their formula. e.g. Water ; H2O ; 2 hydrogen atoms Ammonia ; NH3 ; 3 hydrogen atoms. Methane ; CH4 ; 4 hydrogen atoms. The polymer 'polypropylene' can have millions of hydrogen atoms.
The chemical formula for hydrogen is H2, and for iodine is I2.
The chemical formula for hydrogen sulfide is H2S.
The chemical formula for hydrogen monochloride is HCl.
The chemical formula for phosphorus hydrogen is PH3.
The chemical formula for hydrogen chloride is HCl.