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This article is about an undiscovered isotope. Once it is discovered, this article will be edited with more information.


Ununseptium-290 (290Uus)
Transactinoid
'
General
Name, symbol ununseptium-290, 290Uus
Isotope of ununseptium
Neutrons 173
Protons 117
Nuclide data
Natural abundance Synthetic
Half-life Unknown
Decay products Unknown
Isotope mass Unknown
Spin Unknown
Excess energy Unknown
Binding energy Unknown
Decay mode Unknown
Decay energy Unknown
History
Discoverer None of as yet
Location discovered None of as yet
Date discovered None of as yet

Ununseptium-290 (290
117
Uus
or 290Uus) is a hypothetical radioactive isotope of ununseptium.[1]

ProductionEdit

SynthesisEdit

It could be produced by bombarding californium-249 with potassium-41. No attempt has been made to synthesize this isotope by the aforementioned reaction:[1]

249
98
Cf
+ 41
19
K
290
117
Uus

As a decay productEdit

Ununseptium-289 can also be obtained as a decay product of ununseptium-291 and ununseptium-293:[1]

209
83
Bi
+ 82
34
Se
291
117
Uus
290
117
Uus
+ 1 1
0
n

238
92
U
+ 55
25
Mn
293
117
Uus
291,290
117
Uus
+ 2-3 1
0
n

See alsoEdit

ReferencesEdit


Isotopes of ununseptium
Electron shell 117 Ununseptium - no label

282Uus287Uus288Uus289Uus290Uus291Uus292Uus293Uus294Uus295Uus296Uus297Uus298Uus299Uus300Uus303Uus309Uus326Uus334Uus336Uus337Uus
See full list here
Discovered isotopes in bold

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