Extended periodic table
This extended periodic table was suggested by Glenn T. Seaborg in 1969. It is a logical extension of the principles behind the standard periodic table to include as-yet-undiscovered elements.
Period
1
1
H
2
He
2
3
Li4
Be
5
B6
C7
N8
O9
F10
Ne
3
11
Na12
Mg
13
Al14
Si15
P16
S17
Cl18
Ar
4
19
K20
Ca21
Sc
22
Ti23
V24
Cr25
Mn26
Fe27
Co28
Ni29
Cu30
Zn31
Ga32
Ge33
As34
Se35
Br36
Kr
5
37
Rb38
Sr39
Y
40
Zr41
Nb42
Mo43
Tc44
Ru45
Rh46
Pd47
Ag48
Cd49
In50
Sn51
Sb52
Te53
I54
Xe
6
55
Cs56
Ba57
La
58
Ce59
Pr60
Nd61
Pm62
Sm63
Eu64
Gd65
Tb66
Dy67
Ho68
Er69
Tm70
Yb71
Lu72
Hf73
Ta74
W75
Re76
Os77
Ir78
Pt79
Au80
Hg81
Tl82
Pb83
Bi84
Po85
At86
Rn
7
87
Fr88
Ra89
Ac
90
Th91
Pa92
U93
Np94
Pu95
Am96
Cm97
Bk98
Cf99
Es100
Fm101
Md102
No103
Lr104
Rf105
Db106
Sg107
Bh108
Hs109
Mt110
Ds111
Uuu112
Uub113
Uut114
Uuq115
Uup116
Uuh117
Uus118
Uuo
8
119
Uue120
Ubn121
Ubu[?]122
Ubb[?]123
Ubt[?]124
Ubq[?]125
Ubp[?]126
Ubh[?]127
Ubs[?]128
Ubo[?]129
Ube[?]130
Utn[?]131
Utu[?]132
Utb[?]133
Utt[?]134
Utq[?]135
Utp[?]136
Uth[?]137
Uts[?]138
Uto[?]139
Ute[?]140
Uqn[?]141
Uqu[?]142
Uqb[?]143
Uqt[?]144
Uqq[?]145
Uqp[?]146
Uqh[?]147
Uqs[?]148
Uqo[?]149
Uqe[?]150
Upn[?]151
Upu[?]152
Upb[?]153
Upt[?]154
Upq[?]155
Upp[?]156
Uph[?]157
Ups[?]158
Upo[?]159
Upe[?]160
Uhn[?]161
Uhu[?]162
Uhb[?]163
Uht[?]164
Uhq[?]165
Uhp[?]166
Uhh[?]167
Uhs[?]168
Uho[?]
9
169
Uhe[?]170
Usn[?]171
Usu[?]172
Usb[?]173
Ust[?]
d-block f-block g-block p-block s-block
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