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G-block



Template:DISPLAYTITLE:g-block The g-block is a hypothetical region in the periodic table of the elements. No elements in this region have yet been discovered in nature or synthesized artificially. The first element of the g-block would have atomic number 121, and the systematic name unbiunium. Elements in this region are likely to be highly unstable with respect to radioactive decay, and have extremely short half lives, although element 126 is hypothesized to be within the island of stability.

Additional recommended knowledge

According to the orbital approximation in quantum mechanical descriptions of atomic structure, the g-block would correspond to elements with partially-filled g-orbitals. However, spin-orbit coupling effects reduce the validity of the orbital approximation substantially for elements of high atomic number.

g-block
Period
g1 g2 g3 g4 g5 g6 g7 g8 g9 g10 g11 g12 g13 g14 g15 g16 g17 g18
8 121
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
9 171
Usu
172
Usb
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

See also

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "G-block". A list of authors is available in Wikipedia.
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