Symbol

Z

N

atomic mass

(u)

½ life

Decay

daughter-isotope (s)

δ

δ’

δ’’

Comment

¹H

1

0

1.00782503207

Stable

²H

1

1

2.0141017778

Stable

1

1

³H

1

2

3.0160492777

12.32 (2) an

β⁻

³He

6.41

5

The group ³H was formed

⁴H

1

3

4.02781

(11)

1.39 (10) × 10⁻²² s

n

³H

⁵H

1

4

5.03531

(11)

>9.1 × 10⁻²² s?

n

⁴H

⁶H

1

5

6.04494

(28)

2.90 (70) × 10⁻²² s

3n, 4n

³H,²H

⁷H

1

6

7.05275

(108)

2.3 (6) × 10⁻²⁷ s

4n

³H

³He

2

1

3.0160293191

Stable

5.17

/

³He was formed

⁴He

2

2

4.00260325415

Stable

21.07

0

/

⁴He (α) was formed

⁵He

2

3

5.01222

(5)

700 (30) × 10⁻²⁴ s

n

⁴He

20.37

0

0

⁶He

2

4

6.0188891

(8)

806.7 (15) ms

β⁻ (99.99%)

⁶Li

21.82

1

1

⁷He

2

5

7.028021

(18)

2.9 (5) × 10⁻²¹ s

n

⁶He

21.48

1

0

⁸He

2

6

8.033922

(7)

119.0 (15) ms

β⁻ 83.1%;

β⁻ n

⁸Li, ⁷Li,

23.47

2

1

16%;

β⁻ fis 0.09%

⁵He ³H

⁹He

2

7

9.04395

(3)

7 (4) × 10⁻²¹ s

n

⁸He

22.49

1

−1

¹⁰He

2

8

10.05240

(8)

2.7 (18) × 10⁻²¹ s

2n

⁸He

22.64

1-2

0

⁴Li

3

1

4.027 19

(23)

91 (9) ×  10⁻²⁴ s

p

³He

2.37

No group formed except ²H

⁵Li

3

2

5.012 54

(5)

370 (30) × 10⁻²⁴ s

p

⁴He

19.15

0

/

⁶Li

3

3

6.015122795

(16)

Stable

23.53

2

4

Δm > 21. the nucleus α was formed

⁷Li

3

4

7.016 00455

(8)

Stable

29.12

2

6

One group ³H was formed

⁸Li

3

5

8.022 48736

(10)

840.3 (9) ms

β⁻ fission

2 ⁴He

30.69

3

2

⁹Li

3

6

9.026 789 5

(21)

178.3 (4) ms

β⁻ n (50.8%)

⁸Be

33.83

6

3

β⁻ (49.2%)

⁹Be

¹⁰Li

3

7

10.035 481

(16)

2.0 (5) ×  10⁻²¹ s

n

⁹Li

33.81

6

0

^10m1Li

200

(40) keV

3.7 (15) ×  10⁻²¹ s

^10m2Li

480

(40) keV

1.35 (24) × 10⁻²¹ s

¹¹Li

3

8

11.043 798

(21)

8.75 (14) ms

β⁻ n 84.9%,

β⁻ 8.07%

¹⁰Be, ¹¹Be

34.06

7

1

β⁻ 2n 4.1%,

β⁻ 3n 1.9%

⁹Be, ⁸Be

β⁻ fiss. (1.0%)

⁷He + ⁴He

β⁻, fi (0.014%)

⁸Li + ³H

¹²Li

3

9

12.053 78

(107)

<10 ns

n

¹¹Li

33.12

12

−1

⁵Be

4

1

5.04079

(429)

p

⁴Li

-2.17

⁶Be

4

2

6.019726

(6)

5.0 (3) × 10⁻²¹ s

2p

⁴He

19.21

0

/

The difference with 5Be is 21.38. One nucleus of He4 was formed

⁷Be

4

3

7.01692983

(11)

53.22 (6)j = 4.6 × 10⁶ s

CE

⁷Li

27.46

6

/

α (21) + ³He (5) = 26.

One 3He was formed

⁸Be

4

4

8.00530510

(4)

6.7 (17) × 10⁻¹⁷ s

fission

2 ⁴He

42.05

0

/

A second α was formed

⁹Be

4

5

9.0121822

(4)

Stable

43.34

1

1

Stable despite a single bond. It is necessary to imagine that the neutron 5 is at the same distance of the 2 α

¹⁰Be

4

6

10.0135338

(4)

1.39 Ma = 8.16 × 10¹³ s

β⁻

¹⁰B

48.60

7

5

The n has 5 bonds (13) => T = 726⁵ = 4.76 × 10¹³ s

¹¹Be

4

7

11.021658

(7)

13.81 (8) s

Β⁻ 97.1

β⁻, α 2.9%

¹¹B, ⁷Li

48.99

7

1/2

¹²Be

4

8

12.026921

(16)

21.49 (3) ms

β⁻ (99.48%)

¹²B

51.44

9

2

β⁻, n (0.52%)

¹¹B

¹³Be

4

9

13.03569

(8)

0.5 (1) ns

n

¹²Be

51.37

9

0

¹⁴Be

4

10

14.04289

(14)

4.84 (10) ms

β⁻, n (81.0%)

¹³B

52.42

10

1

Β⁻ 14.0%,

β⁻ 2n 5.0%

¹⁴B, ¹²B

¹⁵Be

4

11

15.05346

(54)#

<200 ns

51.04

9

−1

¹⁶Be

4

12

16.06192

(54)#

<200 ns

51.20

9

0

⁷B

5

2

7.02992

(8)

350 (50) × 10⁻²⁴ s

p

⁶Be

17.12

<21, The nucleus of ’He4 is not formed

⁸B

5

3

8.0246072

(11)

770 (3) ms

β⁺ fission

2 (⁴He)

27.17

1

/

Formed with 1He (21) + ³He (5); stay 1bond

⁹B

5

4

9.0133288

(11)

800 (300) × 10⁻²¹ s

p

⁸Be

41.52

0

0

¹⁰B

5

5

10.0129370

(4)

Stable

48.03

6

6

¹¹B

5

6

11.0093054

(4)

Stable

56.88

9

9

One 3H was formed

¹²B

5

7

12.0143521

(15)

20.20 (2) ms

β⁻ 98.4%,

β⁻, α 1.6%

¹²C, ⁶Be

59.48

12

3

¹³B

5

8

13.0177802

(12)

17.33 (17) ms

β⁻ 99.72%,

β⁻ n 0.28%

¹³C, ¹²C

63.25

15

3

¹⁴B

5

9

14.025404

(23)

12.5 (5) ms

β⁻ (93.96%)

¹⁴C

64.00

16

1

β⁻, n (6.04%)

¹³C

¹⁵B

5

10

15.031103

(24)

9.87 (7) ms

β⁻, n (93.6%)

¹⁴C

66.13

18

2

β⁻ (6.0%)

¹⁵C

β⁻, 2n (0.40%)

¹³C

¹⁶B

5

11

16.03981

(6)

<190 × 10⁻¹² s

n

¹⁴B

66.10

18

0

¹⁷B

5

12

17.04699

(18)

5.08 (5) ms

β⁻, n (63.0%)

¹⁶C

67.17

19

1

β⁻ (22.1%)

¹⁷C

β⁻, 2n (11.0%)

¹⁵C

β⁻, 3n (3.5%)

¹⁴C

β⁻, 4n (0.40%)

¹³C

¹⁸B

5

13

18.05617

(86)

<26 ns

n

¹⁷B

66.80

19

0

¹⁹B

5

14

19.06373

(43)

2.92 (13) ms

β⁻

¹⁹C

67.60

20

1

⁸C

6

2

8.037675

(25)

2.0 (4) ×  10⁻²¹ s

2p

⁶Be

16.77

<21 so helion no formed

⁹C

6

3

9.0310367

(23)

126.5 (9) ms

β⁺ 60%

⁹B

27.78

2

/

1 hélion + ³He = 26; stay 2

β+, p (23%)

⁸Be

β+, α (17%)

⁵Li

¹⁰C

6

4

10.0168532

(4)

19.290 (12) s

β+

¹⁰B

44.21

2

/

2 α formed

¹¹C

6

5

11.0114336

(10)

20.334 (24) min

β⁺ (99.79%)

¹¹B

54.35

7

/

two α + one ³He = 47

K⁻ CE (0.21%)

¹¹B

¹²C

6

6

12 exactement

Stable

68.81

6

/

3 helions (63) + 6 internal bonds

¹³C

6

7

13.0033548378

(10)

Stable

72.63

10

4

¹⁴C

6

8

14.003241989

(4)

5.73 ×  10³ ans

β⁻

¹⁴N

78.94

16

6

¹⁵C

6

9

15.0105993

(9)

2.449 (5) s

β⁻

¹⁵N

79.89

17

1

¹⁶C

6

10

16.014701

(4)

0.747 (8) s

β⁻, n (97.9%)

¹⁵N

83.17

20

3

β⁻ (2.1%)

¹⁶N

¹⁷C

6

11

17.022586

(19)

193 (5) ms

β⁻ (71.59%)

¹⁷N

83.73

21

1

β⁻, n (28.41%)

¹⁶N

¹⁸C

6

12

18.02676

(3)

92 (2) ms

β⁻ (68.5%)

¹⁸N

86.96

24

3

β⁻, n (31.5%)

¹⁷N

¹⁹C

6

13

19.03481

(11)

46.2 (23) ms

β⁻, n (47.0%)

¹⁸N

87.40

24

0

β⁻ (46.0%)

¹⁹N

β⁻, 2n (7%)

¹⁷N

²⁰C

6

14

20.04032

(26)

16 (3) ms

β⁻, n (72.0%)

¹⁹N

89.67

27

3

β⁻ (28.0%)

²⁰N

²¹C

6

15

21.04934

(54)

<30 ns

n

²⁰C

89.42

26

−1

²²C

6

16

22.05720

(97)

6.2 (13) ms

β⁻

²²N

90.00

28

2

¹⁰N

7

3

10.04165

(43)

200 (140) × 10⁻²⁴ s

p

⁹C

25.38

¹¹N

7

4

11.02609

(5)

590 (210) × 10⁻²⁴ s

p

¹⁰C

42.81

1

/

2 α formed

¹²N

7

5

12.0186132

(11)

11.000 (16) ms

β⁺ 96.5%

¹²C

54.42

7

/

+ one ³He formed

β⁺, α (3.5%)

⁸Be

¹³N

7

6

13.00573861

(29)

9.965 (4) min

β+

¹³C

69.92

7

(1)

/

3α (63) + 6 = ¹²C, stay 1

¹⁴N

7

7

14.0030740048

(6)

Stable

78.11

14

(8)

8

¹²C (69) + ²H (1) = 70,

stay 8

¹⁵N

7

8

15.0001088982

(7)

Stable

86.43

17

(11)

8

¹²C (69) + ³H (6) = 75,

stay 11

¹⁶N

7

9

16.0061017

(28)

7.13 (2) s

β⁻ (99.99%

¹⁶O

88.36

19

1

Reminder: above stable nuclei after C, the additional groups or neutrons will be on a second shell

β⁻. α (0.001%)

¹²C

bonds are double. δ’’ is calculated by dividing the difference of the δ’ by 2

¹⁷N

7

10

17.008450

(16)

4.173 (4) s

β⁻. n (95.0%)

¹⁶O

92.90

24

2.5

β⁻ (4.99%)

¹⁷O

β⁻. α 0.0025%

¹³C

¹⁸N

7

11

18.014079

(20)

622 (9) ms

β⁻ (76.9%)

¹⁸O

95.08

26

1

β⁻, α 12.2%

¹⁴C

β⁻, n (10.9%)

¹⁷O

¹⁹N

7

12

19.017029

(18)

271 (8) ms

β⁻, n 54.6%

¹⁸O

99.20

30

2

β⁻ (45.4%)

¹⁹O

²⁰N

7

13

20.02337

(6)

130 (7) ms

β⁻ n 56.99%

¹⁹O

100.87

32

1

β⁻ (43.00%)

²⁰O

²¹N

7

14

21.02711

(10)

87 (6) ms

Β⁻, n 80%

²⁰O

104.41

35

1.5

β⁻ 20.0%

²¹O

²²N

7

15

22.03439

(21)

13.9 (14) ms

β⁻ 65%,

β⁻, n (35%)

²²O

²¹O

105.41

36

1/2

²³N

7

16

23.04122

(32)

14.5 (24) ms

β⁻ 20.0%

²¹O

106.72

38

1

²⁴N

7

17

24.05104

(43)

<52 ns

n

²³N

105.90

37

−1/2

²⁵N

7

18

25.06066

(54)

<260 ns

105.21

36

−1/2

¹²O

8

4

12.034405

(20)

580 (30) × 10⁻²⁴ s

2p (60%)

¹⁰C

42.06

p (40.0%)

¹¹N

¹³O

8

5

13.024812

(10)

8.58 (5) ms

β⁺ (89.1%)

¹³N

55.20

β⁺, p (10.9%)

¹²C

¹⁴O

8

6

14.00859625

(12)

70.598 (18) s

β⁺

¹⁴N

73.10

¹⁵O

8

7

15.0030656

(5)

122.24 (16) s

β⁺

¹⁵N

¹⁶O

8

8

15.99491461956

Stable

95.41

11

/

4 α formed

¹⁷O

8

9

16.99913170

(12)

Stable

98.61

15

4

¹⁸O

8

10

17.9991610

(7)

Stable

104.82

21

6

¹⁹O

8

11

19.003580

(3)

26.464 (9) s

β⁻

¹⁹F

107.87

24

1.5

²⁰O

8

12

20.0040767

(12)

13.51 (5) s

β⁻

²⁰F

113.75

30

3

²¹O

8

13

21.008656

(13)

3.42 (10) s

β⁻

²¹F

116.69

33

1.5

²²O

8

14

22.00997

(6)

2.25 (15) s

β⁻ (78.0%)

²²F

121.98

38

2.5

β⁻, n (22.0%)

²¹F

²³O

8

15

23.01569

(13)

82 (37) ms

β⁻, n (57.99%)

²²F

124.10

40

1

β⁻ (42.0%)

²¹F

²⁴O

8

16

24.02047

(25)

65 (5) ms

β⁻, n (57.99%)

²³F

126.89

43

1.5

β⁻ (42.01%)

²⁴F

²⁵O

8

17

25.02946

(28)

5.2 × 10⁻⁸ s

n

²⁴O

126.66

43

0

²⁶O

8

18

26.03834

(28)

4.0 × 10⁻⁸ s

β⁻

²⁶F

126.50

43

0

n

²⁵O

²⁷O

8

19

27.04826

(54)

<260 ns

n

²⁶O

125.60

42

−1/2

²⁸O

8

20

28.05781

(64)

<260 ns

n

²⁷O

124.96

42

−1/2