Mercury Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

171Hg

171.00376 (32)

 

80

us

3,500 (300)

7,685 (2)

A~100

 

172Hg

171.99883 (22)

 

420

us

-1,090 (210)

7,714 (1.2)

A

100

173Hg

172.99724 (22)

 

1.1

ms

-2,570 (210)

7,724 (1)

A

100

174Hg

173.992864 (21)

 

2

ms

-6,647 (20)

7,749.8 (1.1)

A~100

 

175Hg

174.99142 (11)

 

10.8

ms

-7,990 (100)

7,759.3 (5.8)

A

?

176Hg

175.987355 (15)

 

20.4

ms

-11,779 (14)

7,782.63 (8.1)

A

90 9

177Hg

176.986279 (81)

 

127.3

ms

-12,781 (75)

7,789.9 (4.2)

A

85

178Hg

177.982483 (14)

 

269

ms

-16,317 (13)

7,811.37 (7.2)

A

?

179Hg

178.981834 (29)

 

1.09

s

-16,922 (27)

7,816.2 (1.5)

A~53

 

180Hg

179.978266 (15)

 

2.56

s

-20,245 (14)

7,836.08 (7.8)

B+

52 4

181Hg

180.977819 (17)

 

3.6

s

-20,661 (15)

7,839.68 (8.5)

B+

69 5

182Hg

181.974690 (10)

 

10.83

s

-23,576.1 (9.7)

7,856.97 (5.3)

B+

86.2 9

183Hg

182.9744498 (88)

 

9.4

s

-23,799.8 (8.2)

7,859.36 (4.5)

B+

88.3 20

184Hg

183.971713 (11)

 

30.6

s

-26,349 (10)

7,874.37 (5.5)

B+

98.89 6

185Hg

184.971899 (17)

 

49.1

s

-26,176 (16)

7,874.50 (8.4)

B+

94 1

186Hg

185.969362 (12)

 

1.38

m

-28,539 (11)

7,888.26 (6)

B+~100

 

187Hg

186.969814 (15)

 

1.9

m

-28,118 (14)

7,886.99 (7.4)

B+

100

188Hg

187.967577 (12)

 

3.25

m

-30,202 (12)

7,899.05 (6.1)

B+

100

189Hg

188.968190 (36)

 

7.6

m

-29,631 (33)

7,896.9 (1.8)

B+

100

190Hg

189.966322 (17)

 

20

m

-31,370 (16)

7,907.02 (8.4)

EC~100

191Hg

190.967157 (24)

 

49

m

-30,593 (23)

7,903.8 (1.2)

B+

100

192Hg

191.965634 (17)

 

4.85

h

-32,011 (16)

7,912.07 (8.1)

EC

100

193Hg

192.966665 (17)

 

3.8

h

-31,051 (15)

7,907.91 (8)

B+

100

194Hg

193.965439 (13)

 

440

y

-32,193 (13)

7,914.64 (6.5)

EC

100

195Hg

194.966720 (25)

 

10.53

h

-31,000 (23)

7,909.3 (1.2)

B+

100

196Hg

195.9658326 (32)

0.15 (1)

stable

 

-31,826.7 (2.9)

7,914.37 (1.5)

 

 

197Hg

196.9672129 (34)

 

64.94

h

-30,541.0 (3.2)

7,908.64 (1.6)

EC

100

198Hg

197.96676903 (36)

9.97 (20)

stable

 

-30,954.45 (34)

7,911.553 (2)

 

 

199Hg

198.96827993 (39)

16.87 (22)

stable

 

-29,547.05 (36)

7,905.284 (2)

 

 

200Hg

199.96832600 (41)

23.10 (19)

stable

 

-29,504.14 (38)

7,905.899 (2)

 

 

201Hg

200.97030227 (64)

13.18 (9)

stable

 

-27,663.26 (60)

7,897.564 (3)

 

 

202Hg

201.97064301 (63)

29.86 (26)

stable

 

-27,345.86 (59)

7,896.852 (3)

 

 

203Hg

202.9728725 (18)

 

46.612

d

-25,269.1 (1.7)

7,887.482 (8)

B-

100

204Hg

203.97349393 (36)

6.87 (15)

stable

 

-24,690.24 (34)

7,885.545 (2)

 

 

205Hg

204.9760734 (39)

 

5.2

m

-22,287.5 (3.6)

7,874.73 (1.8)

B-

100

206Hg

205.977514 (22)

 

8.15

m

-20,946 (20)

7,869.17 (9.9)

B-

100

207Hg

206.98259 (16)

 

2.9

m

-16,220 (150)

7,847.3 (7.2)

B-

100

208Hg

207.98594 (32)

 

42

m

-13,100 (300)

7,833 (1)

B-

100

209Hg

208.99104 (21)

 

37

s

-8,350 (200)

7,812 (1)

B-

100

210Hg

209.99451 (32)

 

10

m

-5,110 (300)

7,798 (1)

B- ?

 

183mHg

182.9744498 (88)

 

5

s

-23,799.8 (8.2)

7,859.36 (4.5)

B+ ?

 

185mHg

184.971899 (17)

 

21.6

s

-26,176 (16)

7,874.50 (8.4)

IT

54 10

186mHg

185.969362 (12)

 

82

us

-28,539 (11)

7,888.26 (6)

IT

100

187mHg

186.969814 (15)

 

2.4

m

-28,118 (14)

7,886.99 (7.4)

B+

100

188mHg

187.967577 (12)

 

134

ns

-30,202 (12)

7,899.05 (6.1)

IT

100

189mHg

188.968190 (36)

 

8.6

m

-29,631 (33)

7,896.9 (1.8)

B+

100

191mHg

190.967157 (24)

 

50.8

m

-30,593 (23)

7,903.8 (1.2)

B+

100

193mHg

192.966665 (17)

 

11.8

h

-31,051 (15)

7,907.91 (8)

B+

92.8 5

195mHg

194.966720 (25)

 

41.6

h

-31,000 (23)

7,909.3 (1.2)

IT

54.2 20

197mHg

196.9672129 (34)

 

23.8

h

-30,541.0 (3.2)

7,908.64 (1.6)

IT

91.4 7

199mHg

198.96827993 (39)

 

42.66

m

-29,547.05 (36)

7,905.284 (2)

IT

100

201mHg

200.97030227 (64)

 

94

us

-27,663.26 (60)

7,897.564 (3)

0

 

203mHg

202.9728725 (18)

 

24

us

-25,269.1 (1.7)

7,887.482 (8)

0

 

205mHg

204.9760734 (39)

 

1.1

ms

-22,287.5 (3.6)

7,874.73 (1.8)

IT

100

181mHg

180.977819 (17)

 

 

 

-20,661 (15)

7,839.68 (8.5)

0

 

183m1Hg

182.9744498 (88)

 

 

 

-23,799.8 (8.2)

7,859.36 (4.5)

0

 

Data Source: ENSDF March 2005

©Radiochemistry Society 2005