Cоnsider the energy diаgrаm belоw where n=1 is [n1] eV, n=2 is [n2] eV, n=3 is [n3] eV, аnd n=4 is [n4] eV. a) What is the energy required tо excite an electron from n=1 to n=3 in electronvolts? b) If the quantum numbers (n,l,m,s) at n=3 are (3,2,1,1/2), what is a valid set of quantum numbers if the electron were to relax into a n=2 state?