Which statement about reaction rates is true? (a)changing the temperature cannot speed up a reaction rate. (b)changing the amount of reactants will not change the reaction rate. (c)changing the surface area affects the reaction rate. (d)a catalyst slows down the reaction rate.

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.

The closer the atoms are to becoming ionic the more highly dense the negatively charged side gets.