If a 1.9 M solution of Ca(OH)2 dissociates completely in water, what is the
final [OH-]?

668900 atoms in total

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.

Nonmetals usually react by gaining electrons