Please help asap it should be easy

For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom. In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen O, or ozone, a molecule of three oxygen atoms, O3.

Explanation:

I think it helps?

did anyone actually do this? like if anyone has submitted this i rly need .

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).