What will the two Nitrogen atoms do to meet the Octet Rule and become stable?

• One Nitrogen atom can give its 3 electrons to the
Other

•The two Nitrogen atoms can both gain 3 electrons

•The two Nitrogen atoms can share 3 pairs of electrons

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2