Make a drawing of the electric field lines around a positive charge, then make a second drawing of the electric field lines around a negative charge.

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.

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27. =3,500,000 x 4,000 = 14,000,000,000