Silicone Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

22Si

22.03453 (22)

 

29

ms

32,160 (200)

6,111 (9)

B+

100

23Si

23.02552 (21)

 

42.3

ms

23,770 (200)

6,562 (9)

B+

100

24Si

24.011546 (21)

 

140

ms

10,755 (19)

7,166.8 (8.1)

B+

100

25Si

25.004106 (11)

 

220

ms

3,824 (10)

7,480.2 (4)

B+

100

26Si

25.9923299 (32)

 

2.234

s

-7,144.6 (3)

7,924.8 (1.2)

B+

100

27Si

26.98670491 (16)

 

4.16

s

-12,384.30 (15)

8,124.334 (6)

B+

100

28Si

27.9769265325 (19)

92.2297 (7)

stable

 

-21,492.7968 (18)

8,448 (0)

 

 

29Si

28.976494700 (22)

4.6832 (5)

stable

 

-21,895.046 (21)

8,448.634 (1)

 

 

30Si

29.973770171 (32)

3.0872 (5)

stable

 

-24,432.928 (30)

8,520.653 (1)

 

 

31Si

30.975363227 (42)

 

157.3

m

-22,949.006 (39)

8,458.290 (1)

B-

100

32Si

31.974148082 (53)

 

132

y

-24,080.907 (50)

8,481.569 (2)

B-

100

33Si

32.978000 (17)

 

6.18

s

-20,493 (16)

8,360.4 (4.8)

B-

100

34Si

33.978576 (15)

 

2.77

s

-19,957 (14)

8,336.1 (4.2)

B-

100

35Si

34.984584 (41)

 

780

ms

-14,360 (38)

8,169 (1.1)

B-

100

36Si

35.98660 (13)

 

450

ms

-12,480 (120)

8,114 (3.4)

B-

100

37Si

36.99294 (18)

 

90

ms

-6,580 (170)

7,953 (4.6)

B-

100

38Si

37.99563 (15)

 

90

ms

-4,070 (140)

7,890 (3.6)

B- ?

 

39Si

39.00207 (36)

 

90

ms

1,930 (340)

7,741 (8.7)

B- ?

 

40Si

40.00587 (60)

 

20

ms

5,470 (560)

7,660 (14)

B- ?

 

41Si

41.0146 (20)

 

30

ms

13,600 (1800)

7,470 (45)

B- ?

 

42Si

42.01979 (54)

 

5

ms

18,430 (500)

7,370 (12)

B- ?

 

43Si

43.02866 (75)

 

15

ms

26,700 (700)

7,200 (16)

B- ?

 

44Si

44.03526 (86)

 

10

ms

32,840 (800)

7,080 (18)

B- ?

 

32mSi

31.974148082 (53)

 

27

ns

-24,080.907 (50)

8,481.569 (2)

0

 

28mSi

27.9769265325 (19)

 

 

 

-21,492.7968 (18)

8,448 (0)

0

 

 

Data Source: ENSDF March 2005

©Radiochemistry Society 2005