If your percent yield of copper was greater than 100%, what are three plausible errors you may have made

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?

The identities of substances are the same before and after which type of change

Fred is studying a substance that is made out of only one element. this means that