What quality of electrons enables them to obviously behave both as particles and waves? (Hint: Think of the size of electrons, relative to anything else in the world.) PLEAS HEL

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.

Which of the following did you identify correctly

Bthats what im doing to and i figured it out it is b