Hypothetical Chemical Element

List of theoretical future chemical elements of the periodic table that are yet to be discovered or named. The names and symbols are temporary and systematic placeholders given based on the atomic number.

Numéro AtomiqueSymbole ChimiqueNom
119Uueununennium
120Ubnunbinilium
121Ubuunbiunium
122Ubbunbibium
123Ubtunbitrium
124Ubqunbiquadium
125Ubpunbipentium
126Ubhunbihexium
127Ubsunbiseptium
128Ubounbioctium
129Ubeunbiennium
130Utnuntrinilium
131Utuuntriunium
132Utbuntribium
133Uttuntritrium
134Utquntriquadium
135Utpuntripentium
136Uthuntrihexium
137Utsuntriseptium
138Utountrioctium
139Uteuntriennium
140Uqnunquadnilium
141Uquunquadunium
142Uqbunquadbium
143Uqtunquadtrium
144Uqqunquadquadium
145Uqpunquadpentium
146Uqhunquadhexium
147Uqsunquadseptium
148Uqounquadoctium
149Uqeunquadennium
150Upnunpentnilium
151Upuunpentunium
152Upbunpentbium
153Uptunpenttrium
154Upqunpentquadium
155Uppunpentpentium
156Uphunpenthexium
157Upsunpentseptium
158Upounpentoctium
159Upeunpentennium
160Uhnunhexnilium
161Uhuunhexunium
162Uhbunhexbium
163Uhtunhextrium
164Uhqunhexquadium
165Uhpunhexpentium
166Uhhunhexhexium
167Uhsunhexseptium
168Uhounhexoctium
169Uheunhexennium
170Usnunseptnilium
171Usuunseptunium
172Usbunseptbium
173Ustunsepttrium
174UsqUnseptquadium
175UspUnseptpentium
176UshUnsepthexium
177UssUnseptseptium
178UsoUnseptoctium
179UseUnseptennium
180UonUnoctnilium
181UouUnoctunium
182UobUnoctbium
183UotUnocttrium
184Uoqunoctquadium
185UopUnoctpentium
186UohUnocthexium
187UosUnoctseptium
188UooUnoctoctium
189UoeUnoctennium
190UenUnennilium
191UeuUnennunium
192UebUnennbium
193UetUnenntrium
194UeqUnennquadium
195UepUnennpentium
196UehUnennhexium
197UesUnennseptium
198UeoUnennoctium
199UeeUnennennium
200BnnBinilnilium