Isotope

Isotopic Mass

amu

% Abundance

T_1/2

T_1/2

Units

Mass Excess

KeV

Binding Energy

Per Nucleon

KeV

Decay

Mode

Branching

Ratio

²²⁸Pu

228.038742 (35)

10

ms

36,088 (32)

7,590.5 (1.4)

A~100

²²⁹Pu

229.040150 (55)

120

s

37,400 (51)

7,586.9 (2.2)

A

100

²³⁰Pu

230.039650 (16)

1.7

m

36,934 (15)

7,590.99 (6.6)

A

?

²³¹Pu

231.041101 (28)

8.6

m

38,285 (26)

7,587.2 (1.1)

B+

87 5

²³²Pu

232.041187 (19)

33.7

m

38,366 (18)

7,588.96 (7.8)

EC

?

²³³Pu

233.042997 (54)

20.9

m

40,052 (50)

7,583.8 (2.2)

B+~100

²³⁴Pu

234.0433171 (75)

8.8

h

40,349.6 (7)

7,584.61 (3)

EC~94

²³⁵Pu

235.045286 (22)

25.3

m

42,184 (21)

7,578.87 (8.8)

B+~100

²³⁶Pu

236.0460580 (24)

2.858

y

42,902.7 (2.2)

7,577.913 (9)

A

100

²³⁷Pu

237.0484097 (24)

45.2

d

45,093.3 (2.2)

7,570.752 (9)

EC~100

²³⁸Pu

238.0495599 (20)

87.7

y

46,164.7 (1.8)

7,568.354 (8)

A

100

²³⁹Pu

239.0521634 (20)

24.11

ky

48,589.9 (1.8)

7,560.311 (8)

A

100

²⁴⁰Pu

240.0538135 (20)

6.564

ky

50,127.0 (1.8)

7,556.036 (8)

A

100

²⁴¹Pu

241.0568515 (20)

14.35

y

52,956.8 (1.8)

7,546.432 (8)

B-~100

²⁴²Pu

242.0587426 (20)

375

ky

54,718.4 (1.9)

7,541.321 (8)

A

100

²⁴³Pu

243.0620031 (34)

4.956

h

57,755.5 (3.2)

7,531.00 (1.3)

B-

100

²⁴⁴Pu

244.0642039 (54)

80

My

59,805.6 (5.1)

7,524.82 (2.1)

A~100

²⁴⁵Pu

245.067747 (15)

10.5

h

63,106 (14)

7,513.58 (5.9)

B-

100

²⁴⁶Pu

246.070205 (16)

10.84

d

65,395 (15)

7,506.54 (6.2)

B-

100

²⁴⁷Pu

247.07407 (32)

2.27

d

69,000 (300)

7,494 (1)

B-

^237mPu

237.0484097 (24)

180

ms

45,093.3 (2.2)

7,570.752 (9)

IT

100

^239mPu

239.0521634 (20)

193

ns

48,589.9 (1.8)

7,560.311 (8)

IT

100

^241mPu

241.0568515 (20)

880

ns

52,956.8 (1.8)

7,546.432 (8)

0

^243mPu

243.0620031 (34)

330

ns

57,755.5 (3.2)

7,531.00 (1.3)

IT

100

^241m1Pu

241.0568515 (20)

21

us

52,956.8 (1.8)

7,546.432 (8)

0