Seaborgium Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

258Sg

258.11317 (45)

 

3.3

ms

105,420 (410)

7,341 (2)

SF

?

259Sg

259.11450 (19)

 

580

ms

106,660 (180)

7,339 (1)

A

90 10

260Sg

260.114422 (42)

 

3.8

ms

106,583 (39)

7,342.4 (1.5)

SF

60 30

261Sg

261.11612 (14)

 

230

ms

108,160 (120)

7,339 (0)

A~100

 

262Sg

262.11640 (30)

 

8

ms

108,420 (280)

7,341 (1)

SF

?

263Sg

263.11832 (13)

 

1

s

110,220 (120)

7,337 (0)

A>70

 

264Sg

264.11893 (30)

 

400

ms

110,780 (280)

7,338 (1)

A ?

 

265Sg

265.121115 (62)

 

8

s

112,818 (58)

7,332.7 (2.2)

A>50

 

266Sg

266.12207 (31)

 

21

s

113,700 (280)

7,332 (1)

A

34 9

267Sg

267.12443 (29)

 

19

ms

115,900 (270)

7,327 (1)

A

100

268Sg

268.12561 (58)

 

30

s

117,000 (540)

7,325 (2)

A ?

 

269Sg

269.12876 (70)

 

35

s

119,930 (660)

7,317 (2)

A<100

 

270Sg

270.13033 (66)

 

10

m

121,400 (620)

7,315 (2)

A ?

 

271Sg

271.13347 (70)

 

2

h

124,330 (650)

7,307 (2)

A ?

 

272Sg

272.13516 (82)

 

1

h

125,900 (770)

7,304 (3)

A ?

 

273Sg

273.13822 (71)

 

1

m

128,750 (660)

7,296 (2)

SF ?

 

263mSg

263.11832 (13)

 

120

ms

110,220 (120)

7,337 (0)

A

?

261mSg

261.11612 (14)

 

 

 

108,160 (120)

7,339 (0)

0

 

265mSg

265.121115 (62)

 

 

 

112,818 (58)

7,332.7 (2.2)

0

 

261m1Sg

261.11612 (14)

 

 

 

108,160 (120)

7,339 (0)

0

Data Source: ENSDF March 2005

©Radiochemistry Society 2005