A water particle (H₂O) is a molecule, not a particle in the sense of atomic particles. Here's the breakdown:

* 2 Hydrogen atoms (H): Each hydrogen atom has 1 proton and 1 electron.

* 1 Oxygen atom (O): An oxygen atom has 8 protons, 8 neutrons, and 8 electrons.

So, a water molecule contains:

* 10 protons (2 from hydrogen + 8 from oxygen)

* 8 neutrons (only from oxygen)

* 10 electrons (2 from hydrogen + 8 from oxygen)