Beryllium Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

5Be

5.0408 (43)

 

 

 

38,000 (4000)

-200 (800)

p ?

 

6Be

6.0197263 (58)

 

5

zs

18,374.9 (5.4)

4,487.3 (9.1)

2p

100

7Be

7.01692983 (11)

 

53.22

d

15,770.03 (11)

5,371.40 (1.5)

EC

100

8Be

8.005305103 (37)

 

67

as

4,941.672 (35)

7,062.435 (4)

A

100

9Be

9.01218220 (43)

100

stable

 

11,347.65 (40)

6,462.76 (4.4)

 

 

10Be

10.01353382 (43)

 

1.51

My

12,606.67 (40)

6,497.71 (4)

B-

100

11Be

11.0216577 (68)

 

13.81

s

20,174.1 (6.4)

5,952.8 (5.8)

B-

100

12Be

12.026921 (16)

 

21.5

ms

25,077 (15)

5,721 (1.2)

B-

100

13Be

13.035693 (77)

 

0.5

ns

33,248 (72)

5,273 (5.5)

n ?

 

14Be

14.04289 (14)

 

4.35

ms

39,950 (130)

4,994 (9.4)

B-

100

15Be

15.05346 (54)

 

<200

ns

49,800 (500)

4,540 (34)

n ?

 

16Be

16.06192 (54)

 

<200

ns

57,680 (500)

4,270 (31)

2n ?

 

13mBe

13.035693 (77)

 

2.7

zs

33,248 (72)

5,273 (5.5)

0

 

13m1Be

13.035693 (77)

 

 

 

33,248 (72)

5,273 (5.5)

0

 

14mBe

14.04289 (14)

 

 

 

39,950 (130)

4,994 (9.4)

0

 

 

Data Source: ENSDF March 2005

©Radiochemistry Society 2005