... 4, 2, -1 /2) m= -l, -( l -1 ), … (l-1), ln > l(a). 1s 2 , 2s 2 , 2p6, 3d10(b). 1s 2 , 2s 2 , 2p6, 3d4(c). 1s 2 , 2s 2 , 2p8, 3d8(d). 1s1, 2s 2 , 2p6, 3d5(e). 1s 2 , 2s 2 , ... ang. momentumstates: l = n-1, n -2 , , 2, 1, 0 2 42 2 2 201 1 2 2enm eeEa n n Energy depends only upon n -1 5 -1 0 -5 00 5 10 15 20 U(r)n=1n=3n =2 n: principal quantum number ... atom is found to be 22 o 2 nneV6.13n1a2eE, 3 ,2, 1n 2 20ema= “Bohr radius” = 0.053 nm -1 5 -1 0 -5 00 5 10 15 20 r/a0E (eV)U(r) -1 500 20 E 2 E1E3* Notes: Before...