Aluminum Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

21Al

21.02804 (32)

 

<35

ns

26,120 (300)

6,340 (14)

p ?

 

22Al

22.01952 (10)

 

59

ms

18,183 (93)

6,783 (4)

B+

100

23Al

23.007267 (20)

 

470

ms

6,770 (19)

7,334.8 (8.1)

B+

100

24Al

23.9999389 (30)

 

2.053

s

-56.9 (2.8)

7,649.9 (1.2)

B+

100

25Al

24.99042810 (51)

 

7.183

s

-8,916.17 (48)

8,021.14 (1.9)

B+

100

26Al

25.986891692 (64)

 

717

ky

-12,210.309 (60)

8,149.771 (2)

B+

100

27Al

26.98153863 (12)

100

stable

 

-17,196.66 (12)

8,331.545 (4)

 

 

28Al

27.98191031 (14)

 

2.2414

m

-16,850.44 (13)

8,309.886 (5)

B-

100

29Al

28.9804450 (13)

 

6.56

m

-18,215.3 (1.2)

8,348.73 (4.2)

B-

100

30Al

29.982960 (15)

 

3.6

s

-15,872 (14)

8,261.4 (4.7)

B-

100

31Al

30.983947 (22)

 

644

ms

-14,954 (20)

8,225.6 (6.6)

B-

100

32Al

31.988124 (92)

 

31.7

ms

-11,062 (86)

8,099 (2.7)

B-

100

33Al

32.990843 (78)

 

41.7

ms

-8,529 (73)

8,022 (2.2)

B-

100

34Al

33.99685 (12)

 

56.3

ms

-2,930 (110)

7,858 (3.3)

B-

100

35Al

34.99986 (19)

 

38.6

ms

-130 (180)

7,784 (5)

B-

100

36Al

36.00621 (23)

 

90

ms

5,780 (210)

7,628 (6)

B-

100

37Al

37.01068 (36)

 

20

ms

9,950 (330)

7,528 (8.9)

B- ?

 

38Al

38.01723 (78)

 

40

ms

16,050 (730)

7,380 (19)

B- ?

 

39Al

39.0230 (16)

 

10

ms

21,400 (1500)

7,260 (38)

B- ?

 

40Al

40.03145 (75)

 

10

ms

29,300 (700)

7,090 (17)

B- ?

 

41Al

41.03833 (86)

 

2

ms

35,700 (800)

6,950 (20)

B- ?

 

42Al

42.04689 (97)

 

1

ms

43,680 (900)

6,790 (22)

B- ?

 

24mAl

23.9999389 (30)

 

131.3

ms

-56.9 (2.8)

7,649.9 (1.2)

IT

82 3

26mAl

25.986891692 (64)

 

6.3452

s

-12,210.309 (60)

8,149.771 (2)

B+

100

32mAl

31.988124 (92)

 

200

ns

-11,062 (86)

8,099 (2.7)

0

 

 

Data Source: ENSDF March 2005

©Radiochemistry Society 2005