A hydrogen atom is one proton with an electron orbiting it. Said hydrogen atom will not remain a hydrogen atom for long--it wants nothing more than to bond to another atom, and isn't really all that fussy about what it bonds to. It will bond to, among other things, an oxygen atom to make water, a chlorine atom to make hydrochloric acid, a fluorine atom to make hydrofluoric acid--VERY dangerous stuff!--carbon atoms to make hydrocarbons, carbon and oxygen atoms to make carbohydrates...It also likes to bond to iron, which makes weak iron products.
Hydrogen is composed of hydrogen atoms.
To answer your question on how many hydrogen atoms are there in caffeine, the scientific answer would be 10 atoms of hydrogen.
There are two atoms of Hydrogen in the molecule.
Only hydrogen atoms.
There are 4 hydrogen atoms in CH4O
Hydrogen peroxide (H2O2) contains two atoms of hydrogen and two atoms of oxygen for a total of four atoms.
Since the chemical formula for Cycohexane is C6H12, it has 12 atoms of Hydrogen.
H2O2 2 atoms of hydrogen 2 atoms of oxygen
Decane has 10 carbon atoms and 22 hydrogen atoms.
A hydrogen molecule consists of two hydrogen atoms.
Pentyne is CHCCH2CH2CH3. This compound has 8 hydrogen atoms.
One mole of hydrogen molecules (H2) contains 2 hydrogen atoms per molecule, while one mole of hydrogen atoms contains single hydrogen atoms. Since the mass of a hydrogen atom is approximately half the mass of a hydrogen molecule, the molar mass of hydrogen molecules is higher than the molar mass of hydrogen atoms.