"the number of quantum numbers needed to describe the state of an atomic electron is"

How many grams of n2h4 will be consumed by 23 g of n2o4

What is the molar mass of a gas that has density of 2.054 g/l

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.