Is a diatom a protist?

Yes it is, I don't want to give a long explanation but I did a whole project on diatoms for biology last week because we were learning about protists. A protist is something that is unicellular (made up of one cell) and diatoms are unicellular organisms.

Yes a diatom is a protist because as algae it has an inorganic cell wall that made up of silicon dioxide or hydrated silica