Roentgenium Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

272Rg

272.15362 (36)

 

2

ms

143,090 (330)

7,226 (1)

A

100

273Rg

273.15368 (65)

 

5

ms

143,150 (600)

7,229 (2)

A ?

 

274Rg

274.15571 (66)

 

5

ms

145,050 (620)

7,225 (2)

A ?

 

275Rg

275.15614 (74)

 

10

ms

145,450 (690)

7,227 (3)

A ?

 

276Rg

276.15849 (67)

 

100

ms

147,640 (630)

7,222 (2)

A ?

 

277Rg

277.15952 (66)

 

1

s

148,590 (620)

7,221 (2)

A ?

 

278Rg

278.16160 (68)

 

1

s

150,530 (630)

7,217 (2)

A ?

 

279Rg

279.16247 (71)

 

3

s

151,340 (660)

7,218 (2)

A ?

 

280Rg

280.16447 (80)

 

10

s

153,210 (740)

7,214 (3)

A ?

 

281Rg

281.1654 (10)

 

1

m

154,040 (930)

7,214 (3)

A ?

 

282Rg

282.16749 (95)

 

4

m

156,010 (890)

7,210 (3)

A ?

 

283Rg

283.16842 (84)

 

10

m

156,880 (780)

7,210 (3)

A ?

 

Data Source: ENSDF March 2005

©Radiochemistry Society 2005