Which statement best explains why the atomic theory developed efficiently?

Scientists decided to  use creativity in their investigations

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.

No table found. the question asks for covalent bond based on electronegativies