Ununpentium Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

287Uup

287.19119 (84)

 

500

ms

178,090 (790)

7,137 (3)

A ?

 

288Uup

288.19249 (92)

 

1

s

179,310 (850)

7,136 (3)

A ?

 

289Uup

289.1927 (11)

 

10

s

179,500 (1000)

7,139 (4)

A ?

 

290Uup

290.1941 (11)

 

10

s

180,840 (980)

7,137 (3)

A ?

 

291Uup

291.19438 (95)

 

1

m

181,070 (890)

7,140 (3)

A ?

 

Data Source: ENSDF March 2005

©Radiochemistry Society 2005