How many moles are in 12.0 grams of O2

Compare and contrast solutions and suspensions

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table