there are 3 atoms in water, 2 hydrogens and 1 oxygen. It looks like H--O--H only it is bent instead of straight.
3, H20 so that's 2 hydrogens and an oxygen.
There are 3 total atoms in water, which is H2O. There are 2 hydrogen atoms (H), and 1 oxygen atom (O). See the Related Questions to the left for more information about the structure of water.
There are 2 hydrogen atoms and 1 oxygen atom in a water molecule.
There are two hydrogen atoms in a water molecule.