Which bond is most polar? 1. h—f 2. h—cl 3. h—br 4. h—i

The answer is #1. Hydrogen to Flouride. This is because flouride is the most reactive element in groups 1 - 2 and 13 - 17. Meaning the most polar element is Flouride.

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.