How many grams of oxygen are required to react with 2.05 g
g
of dihydrogen sulfide?

How will the emission of an alpha particle affect the atomic number of an atom

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

If an atom has 12 protons and 13 neutrons