bei48482_FM

508 Appendix

Atomic Relative

Z Element Symbol A Mass, u Abundance, % Half-Life

9 Fluorine F 17 17.002 095 64.5 s

18 18.000 937 109.8 min

19 18.998 403 100

20 19.999 982 11.0 s

21 20.999 949 4.33 s

10 Neon Ne 18 18.005 710 1.67 s

19 19.001 880 17.2 s

20 19.992 439 90.51

21 20.993 845 0.57

22 21.991 384 9.22

23 22.994 466 37.5 s

24 23.993 613 3.38 min

11 Sodium Na 22 21.994 435 2.60 y

23 22.989 770 100

24 23.990 963 15.0 h

12 Magnesium Mg 23 22.994 127 11.3 s

24 23.985 045 78.99

25 24.985 839 10.00

26 25.982 595 11.01

13 Aluminum Al 27 26.981 541 100

14 Silicon Si 28 27.976 928 92.23

29 28.976 496 4.67

30 29.973 772 3.10

15 Phosphorus P 30 29.978 310 2.50 min

31 30.973 763 100

16 Sulfur S 32 31.972 072 95.02

33 32.971 459 0.75

34 33.967 868 4.21

35 34.969 032 87.2 d

36 35.967 079 0.017

17 Chlorine Cl 35 34.968 853 75.77

36 35.968 307 3.01 105 y

37 36.965 903 24.23

18 Argon Ar 36 35.967 546 0.337

37 36.966 776 34.8 d

38 37.962 732 0.063

39 38.964 315 269 y

40 39.962 383 99.60

19 Potassium K 39 38.963 708 93.26

40 39.963 999 0.01 1.28 109 y

41 40.961 825 6.73

20 Calcium Ca 40 39.962 591 96.94

41 40.962 278 1.3 105 y

42 41.958 622 0.647

43 42.958 770 0.135

44 43.955 485 2.09

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