1. what is necessary for a covalent bond to form according to the
valence bond theory?

What term describes technology that operates on an atomic level

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron