Prvok Elektrónová konfigurácia Lítium (3Li) 1s22s1 Sodík (11Na) 1s22s22p63s1 Hliník (13Al) 1s22s22p63s23p1 Draslík (19K) 1s22s22p63s23p64s1 Vápnik (20Ca) 1s22s22p63s23p64s2 Vanád (23V) 1s22s22p63s23p63d34s2 Chróm (24Cr) 1s22s22p63s23p63d54s1 Železo (26Fe) 1s22s22p63s23p63d64s2 Nikel (28Ni) 1s22s22p63s23p63d84s2 Meď (29Cu) 1s22s22p63s23p63d104s1 Kryptón (36Kr) 1s22s22p63s23p63d104s24p6 Rubídium (37Rb) 1s22s22p63s23p64s23d104p65s1 Stroncium (38Sr) 1s22s22p63s23p64s23d104p65s2 Zirkónium (40Zr) 1s22s22p63s23p63d104s24p64d25s2 Niób (41Nb) 1s22s22p63s23p64s23d104p65s14d4 Molybdén (42Mo) 1s22s22p63s23p64s23d104p65s14d5 Ródium (45Rh) 1s22s22p63s23p64s23d104p65s14d8 Striebro (47Ag) 1s22s22p63s23p64s23d104p65s14d10 Xenón (54Xe) 1s22s22p63s23p63d104s24p64d105s25p6 Cézium (55Cs) 1s22s22p63s23p64s23d104p65s24d105p66s1 Bárium (56Ba) 1s22s22p63s23p64s23d104p65s24d105p66s2 Yterbium (70Yb) 1s22s22p63s23p63d104s24p64d104f145p26s2 Tantal (73Ta) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d3 Wolfrám (74W) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d4 Irídium (77Ir) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d7 Platina (78Pt) 1s22s22p63s23p64s23d104p65s24d105p66s14f145d9 Zlato (79Au) 1s22s22p63s23p64s23d104p65s24d105p66s14f145d10 Olovo (82Pb) 1s22s22p63s23p64s23d104p65s24d105p66s14f145d106p2 1sx2sx2px3sx3px4sx3dx4px5sx4dx5px6sx4fx5dx6px7sx5fx6dx7px