Lots o points and brainliest To find the atomic mass of an element that is included on a periodic table, what must be found first? The number of protons in that element.
The average mass of all the isotopes.
The number of electrons in that element.
The number of neutrons in that element.

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.