If you recovered 1.126 grams of copper from a reaction where you theoretically should have recovered 1.568 grams of copper, what is your percent yield of copper recovered

It’s the energy source of stars

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.