Z = 1 Hidrógeno
H : 1s1
Z = 2 Helio
He : 1s2
Z = 3 Litio
Li : 1s22s1
Z = 4 Berilio
Be : 1s22s2Z = 5 Boro
B : 1s22s22p1Z = 6 Carbono
C : 1s22s22p2Z = 7 Nitrógeno
N : 1s22s22p3Z = 8 Oxígeno
O : 1s22s22p4Z = 9 Flúor
F : 1s22s22p5Z = 10 Neón
Ne : 1s22s22p6Z = 11 Sodio
Na : 1s22s22p63s1
Z = 12 Magnesio
Mg : 1s22s22p63s2Z = 13 Aluminio
Al : 1s22s22p63s23p1Z = 14 Silicio
Si : 1s22s22p63s23p2Z = 15 Fósforo
P : 1s22s22p63s23p3
Z = 16 Azufre
S : 1s22s22p63s23p4Z = 17 Cloro
Cl : 1s22s22p63s23p5Z = 18 Argón
Ar : 1s22s22p63s23p6Z = 19 Potasio
K : 1s22s22p63s23p64s1Z = 20 Calcio
Ca : 1s22s22p63s23p64s2Z = 21 Escandio
Sc : 1s22s22p63s23p63d14s2Z = 22 Titanio
Ti : 1s22s22p63s23p63d24s2Z = 23 Vanadio
V : 1s22s22p63s23p63d34s2Z = 24 Cromo
Cr : 1s22s22p63s23p63d54s1Z = 25 Manganeso
Mn : 1s22s22p63s23p63d54s2Z = 26 Hierro
Fe : 1s22s22p63s23p63d64s2Z = 27 Cobalto
Co : 1s22s22p63s23p63d74s2Z = 28 Níquel
Ni : 1s22s22p63s23p63d84s2Z = 29 Cobre
Cu : 1s22s22p63s23p63d104s1Z = 30 Cinc
Zn : 1s22s22p63s23p63d104s2Z = 31 Galio
Ga : 1s22s22p63s23p63d104s24p1
Z = 32 Germanio
Ge : 1s22s22p63s23p63d104s24p2
Z = 33 Arsénico
As : 1s22s22p63s23p63d104s24p3Z = 34 Selenio
Se : 1s22s22p63s23p63d104s24p4Z = 35 Bromo
Br : 1s22s22p63s23p63d104s24p5Z = 36 Kriptón
Kr : 1s22s22p63s23p63d104s24p6Z = 37 Rubidio
Rb : 1s22s22p63s23p63d104s24p65s1Z = 38 Estroncio
Sr : 1s22s22p63s23p63d104s24p65s2Z = 39 Itrio
Y : 1s22s22p63s23p63d104s24p64d15s2Z = 40 Circonio
Zr : 1s22s22p63s23p63d104s24p64d25s2Z = 41 Niobio
Nb : 1s22s22p63s23p63d104s24p64d45s1Z = 42 Molibdeno
Mo : 1s22s22p63s23p63d104s24p64d55s1Z = 43 Tecnecio
Tc : 1s22s22p63s23p63d104s24p64d55s2
Z = 44 Rutenio
Ru : 1s22s22p63s23p63d104s24p64d75s1Z = 45 Rodio
Rh : 1s22s22p63s23p63d104s24p64d85s1Z = 46 Paladio
Pd : 1s22s22p63s23p63d104s24p64d10Z = 47 Plata
Ag : 1s22s22p63s23p63d104s24p64d105s1Z = 48 Cadmio
Cd : 1s22s22p63s23p63d104s24p64d105s2Z = 49 Indio
In : 1s22s22p63s23p63d104s24p64d105s25p1Z = 50 Estaño
Sn : 1s22s22p63s23p63d104s24p64d105s25p2Z = 51 Antimonio
Sb : 1s22s22p63s23p63d104s24p64d105s25p3Z = 52 Telurio
Te : 1s22s22p63s23p63d104s24p64d105s25p4Z = 53 Yodo
I : 1s22s22p63s23p63d104s24p64d105s25p5Z = 54 Xenón
Xe : 1s22s22p63s23p63d104s24p64d105s25p6Z = 55 Cesio
Cs : [Xe]6s1Z = 56 Bario
Ba : [Xe]6s2Z = 57 Lantano
La : [Xe]5d16s2
Z = 72 Hafnio
Hf : [Xe]4f145d26s2Z = 73 Tántalo
Ta : [Xe]4f145d36s2Z = 74 Volframio
W : [Xe]4f145d46s2Z = 75 Renio
Re : [Xe]4f145d56s2Z = 76 Osmio
Os : [Xe]4f145d66s2Z = 77 Iridio
Ir : [Xe]4f145d76s2Z = 78 Platino
Pt : [Xe]4f145d96s1Z = 79 Oro
Au : [Xe]4f145d106s1Z = 80 Mercurio
Hg : [Xe]4f145d106s2Z = 81 Talio
Tl : [Xe]4f145d106s26p1Z = 82 Plomo
Pb : [Xe]4f145d106s26p2
Z = 83 Bismuto
Bi : [Xe]4f145d106s26p3Z = 84 Polonio
Po : [Xe]4f145d106s26p4Z = 85 Astato
At : [Xe]4f145d106s26p5Z = 86 Radón
Rn : [Xe]4f145d106s26p6Z = 87 Francio
Fr : [Xe]4f145d106s26p67s1Z = 88 Radio
Ra : [Xe]4f145d106s26p67s2Z = 89 Actinio
Ac : [Xe]4f145d106s26p66d17s2.