This question is a bit tricky! Oxygen itself is an element, meaning it's made up of only one type of atom. So, a single oxygen atom doesn't "have" hydrogen atoms.

However, oxygen often combines with hydrogen to form water (H₂O). In one molecule of water:

* There are two hydrogen atoms (H₂)

* There is one oxygen atom (O)

Let me know if you have any other questions about atoms and molecules!