All hydrogen atoms have one proton and one electron.
All hydrogen atoms have 1 protron in the nuclues and 1 electron outside the nucleus.
All organic compounds contain carbon atoms bonded to hydrogen atoms.
The common characteristic shared by all organic substances is that they contain carbon atoms bonded to hydrogen atoms.
All atoms in the beginning were hydrogen atoms.
All hydrogen atoms are the same but they are different from the atoms of other elements.
Common table salt is Sodium Chloride ( NaCl ) and has no hydrogen atoms.
hydrogen
By atoms: hydrogen, oxygen, and carbon By mass: oxygen, carbon, hydrogen
the most common element is hydrogen and its molecule of two hydrogen atoms is the most common molecule
Most hydrogen atoms don't contain any neutrons. Deuterium atoms are hydrogen atoms with one neutron each, and tritium atoms are hydrogen atoms with two neutrons each, but most hydrogen atoms are protium atoms, with no neutrons at all. All other atoms in the universe except protium contain at least one neutron each.
Sugar is a common example of a compound with carbon atoms bonded to hydrogen and oxygen atoms. Compounds made from carbon, oxygen and hydrogen often fall under the category of carbohydrates, which are common to almost every living thing (including you!). Common table sugar is sucrose, and has the chemical formula C12H22O11. That's a common carb that you probably encounter daily.
Water is a common compound, and it is H2O.