Extended periodic table

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Scientists are trying to make new chemical elements that do not exist yet. In this way, they will extend (lengthen) the periodic table. As of 2023, the element with the highest atomic number is oganesson, element 118. Scientists have tried to make atoms with higher atomic numbers, by smashing smaller atoms together. Scientists have also made predictions about how to make these atoms. There is probably a biggest possible atomic number for any atom. Atoms with a higher atomic number than this cannot exist. However, scientists are not sure what this number is.

Layout[change | change source]

The extended periodic table is a version of the periodic table that is longer than the normal one, making room for future synthetic elements. The inner transition metals are placed between Group 2 and Group 3 on the periodic table. On a normal periodic table, the inner transition metals are below Groups 2 and 3.

Extended Periodic Table
(Superheavy elements may not follow the order of this table)
0 0
Nt
1 1
H
2
He
2 3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3 11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4 19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5 37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6 55
Cs
56
Ba
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7 87
Fr
88
Ra
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
8 119
Uue
120
Ubn
121
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
169
Uhe
170
Usn
171
Usu
172
Usb
9 173
Ust
174
Usq
175
Usp
176
Ush
177
Uss
178
Uso
179
Use
180
Uon
181
Uou
182
Uob
183
Uot
184
Uoq
185
Uop
186
Uoh
187
Uos
188
Uoo
189
Uoe
190
Uen
191
Ueu
192
Ueb
193
Uet
194
Ueq
195
Uep
196
Ueh
197
Ues
198
Ueo
199
Uee
200
Bnn
201
Bnu
202
Bnb
203
Bnt
204
Bnq
205
Bnp
206
Bnh
207
Bns
208
Bno
209
Bne
210
Bun
211
Buu
212
Bub
213
But
214
Buq
215
Bup
216
Buh
217
Bus
218
Buo
219
Bue
220
Bbn
221
Bbu
222
Bbb
223
Bbt
224
Bbq
225
Bbp
226
Bbh
10 227
Bbs
228
Bbo
229
Bbe
230
Btn
231
Btu
232
Btb
233
Btt
234
Btq
235
Btp
236
Bth
237
Bts
238
Bto
239
Bte
240
Bqn
241
Bqu
242
Bqb
243
Bqt
244
Bqq
245
Bqp
246
Bqh
247
Bqs
248
Bqo
249
Bqe
250
Bpn
251
Bpu
252
Bpb
253
Bpt
254
Bpq
255
Bpp
256
Bph
257
Bps
258
Bpo
259
Bpe
260
Bhn
261
Bhu
262
Bhb
263
Bht
264
Bhq
265
Bhp
266
Bhh
267
Bhs
268
Bho
269
Bhe
270
Bsn
271
Bsu
272
Bsb
273
Bst
274
Bsq
275
Bsp
276
Bsh
277
Bss
278
Bso
279
Bse
280
Bon
11 281
Bou
282
Bob
283
Bot
284
Boq
285
Bop
286
Boh
287
Bos
288
Boo
289
Boe
290
Ben
291
Beu
292
Beb
293
Bet
294
Beq
295
Bep
296
Beh
297
Bes
298
Beo
299
Bee
300
Tnn
301
Tnu

Naming of elements[change | change source]

Each of these predicted elements can be given a name. These names are based on the digits of the atomic number. They were set by Iupac, and come from Latin and Greek.

  • 0: nill (N)
  • 1: un (U)
  • 2: bi (B)
  • 3: tri (T)
  • 4: quad (Q)
  • 5: pent (P)
  • 6: hex (H)
  • 7: sept (S)
  • 8: oct (O)
  • 9: en (E)

The chemical name and symbol come from these put together, followed by "ium" or "um". For example, element 138 is called untrioctium and has symbol Uto.

An element can also be named by "eka-" followed by the element above it in the periodic table. For example, ununennium can also be called eka-francium.

Predictions[change | change source]

Pekka Pykkö has predicted how atomic orbitals will fill up as atomic number increases. According to this model, element 172 should be the end of the row that starts with element 119.[1]

Related pages[change | change source]

References[change | change source]

  1. Pyykkö, Pekka (2011). "A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions". Phys. Chem. Chem. Phys. 13 (1): 161–168. doi:10.1039/C0CP01575J. ISSN 1463-9076. PMID 20967377.

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