Isotope

Isotopic Mass

amu

% Abundance

T_1/2

T_1/2

Units

Mass Excess

KeV

Binding Energy

Per Nucleon

KeV

Decay

Mode

Branching

Ratio

⁸C

8.037675 (25)

2

zs

35,094 (23)

3,098 (2.9)

2p

100

⁹C

9.0310367 (23)

126.5

ms

28,910.5 (2.1)

4,337.5 (2.4)

B+

100

¹⁰C

10.01685323 (43)

19.29

s

15,698.68 (40)

6,032.04 (4)

B+

100

¹¹C

11.0114336 (10)

20.39

m

10,650.34 (95)

6,676.37 (8.6)

B+

100

¹²C

12.0000000000000 (10)

98.93 (8)

stable

0 (0)

7,680 (0)

¹³C

13.00335483778 (98)

1.07 (8)

stable

3,125.01129 (91)

7,470 (0)

¹⁴C

14.0032419887 (41)

5.7

ky

3,019.8931 (38)

7,520 (0)

B-

100

¹⁵C

15.01059926 (86)

2.449

s

9,873.14 (80)

7,100.17 (5.3)

B-

100

¹⁶C

16.0147013 (38)

747

ms

13,694.1 (3.6)

6,922.1 (2.2)

B-

100

¹⁷C

17.022586 (19)

193

ms

21,039 (17)

6,558 (1)

B-

100

¹⁸C

18.026759 (32)

92

ms

24,926 (30)

6,426 (1.7)

B-

100

¹⁹C

19.03481 (11)

46.2

ms

32,421 (98)

6,118 (5.2)

B-

100

²⁰C

20.04032 (26)

16

ms

37,560 (240)

5,960 (12)

B-

100

²¹C

21.04934 (54)

<30

ns

45,960 (500)

5,660 (24)

n ?

²²C

22.05720 (97)

6.2

ms

53,280 (900)

5,440 (41)

B-

100