What is the medium the energy in the slinky wave travels through? the metal coil of the slinky

the hand moving the slinky

the wooden block

the air

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.