Ununbium Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

277Uub

277.16394 (14)

 

1.1

ms

152,710 (130)

7,204 (0)

A

100

278Uub

278.16431 (57)

 

10

ms

153,060 (530)

7,206 (2)

A ?

 

279Uub

279.16655 (53)

 

100

ms

155,140 (490)

7,201 (2)

A ?

 

280Uub

280.16704 (69)

 

1

s

155,600 (640)

7,203 (2)

A ?

 

281Uub

281.1693 (11)

 

10

s

157,690 (980)

7,198 (4)

A ?

 

282Uub

282.16977 (76)

 

30

s

158,140 (710)

7,200 (3)

A ?

 

283Uub

283.17179 (83)

 

4.2

m

160,020 (770)

7,196 (3)

SF

100

284Uub

284.17238 (91)

 

31

s

160,570 (850)

7,197 (3)

A

100

285Uub

285.17411 (78)

 

40

m

162,180 (730)

7,195 (3)

A

100

Data Source: ENSDF March 2005

©Radiochemistry Society 2005