Cation is named first then the anion.Thus NiO is called nickel oxide where Ni is dipositive & oxygen has -2 charge. read more
It’s not considered a molecule as a molecule is considered to be a group of atoms bonded together sharing electrons (covalent bond). Sodium chloride is not covalently bonded and shares no electrons, thus not a molecule. read more
\nThey are the same thing. sodium chloride is the chemical name for the substance commonly called salt. read more
Sodium chloride, regular table salt, is also known as the mineral halite. The diagram to the right shows how sodium and chlorine atoms pack tightly together to form cube-like units of the compound NaCl. read more