This number is 4.
A hydrogen atom can bond with up to one other atom in an organic compound.
4
4
One
Up to four atoms; ex.: methane, CH4.
Just one.
Since H atoms have one valence electron, they can bond with only one element, whether in an inorganic or organic compound.
4
4
Just one.
Carbon is tetravalent. So, it can bond with maximum of four atoms.
A compound with no carbon is considered inorganic, not organic. Organisms re lack a carbon atom are not considered organic compounds.