My lecturer is currently addressing modern physics. "we" (more like "he") solved the schrodinger equation for hydrogen, and then into all the quantized angular momentum, intrinsic momentum.... now we are into quantum statistics... Seriously, I have absolutely no idea what my professor is talking about in class, and I doubt that if anyone else is following (at least none of my friends are). It seems like my professor just keeps throwing ideas at us without explaining why or where they come from. Example: electrons have intrinsic angular momentum, when "adding" wavefunction, femions is +, boson is - (i forgot, it may be the other way around...) four quantum numbers of hydrogen atoms n,l,m_l,m_s, j, m_j... My professor does explain things (somewhat) but they do not really make sense to me. Am I supposed to be that confused? Is this the way one learns intro quantum/modern physics?????