Oxygen and sulphur at at the same group in the periodic table and they form bonding with hydrogen. h2o and h2s
but h2o is liquid and h2s is gas at room temperature why?

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

1. o2(g)as a product