Students were given a metal cylinder and asked to calculate its density . The pictures above show the riders of the triple beam balance and the water level in the graduated cylinder before and after the cylinder was inserted What is the density of the metal cylinder ?

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.