Relative Isotopic Standard
Isotope Atomic Mass Composition Atomic Weight Notes
_________________________________________________________________________
1 H 1 1.00782503223(9) 0.999885(70) [1.00784,1.00811] m
D 2 2.01410177812(12) 0.000115(70)
T 3 3.0160492779(24)
H 4 4.02643(11)
5 5.035311(96)
6 6.04496(27)
7 7.0527(11#)
_________________________________________________________________________
2 He 3 3.0160293201(25) 0.00000134(3) 4.002602(2) g,r
4 4.00260325413(6) 0.99999866(3)
5 5.012057(21)
6 6.018885891(57)
7 7.0279907(81)
8 8.033934390(95)
9 9.043946(50)
10 10.05279(11)
_________________________________________________________________________
3 Li 3 3.0308(21#) [6.938,6.997] m
4 4.02719(23)
5 5.012538(54)
6 6.0151228874(16) 0.0759(4)
7 7.0160034366(45) 0.9241(4)
8 8.022486246(50)
9 9.02679019(20)
10 10.035483(14)
11 11.04372358(66)
12 12.052517(16)
13 13.06263(38)
_________________________________________________________________________
4 Be 5 5.0399(22#) 9.0121831(5)
6 6.0197264(58)
7 7.016928717(76)
8 8.005305102(37)
9 9.012183065(82) 1
10 10.013534695(86)
11 11.02166108(26)
12 12.0269221(20)
13 13.036135(11)
14 14.04289(14)
15 15.05342(43#)
16 16.06167(18)
_________________________________________________________________________
5 B 6 6.0508(22#) [10.806,10.821] m
7 7.029712(27)
8 8.0246073(11)
9 9.01332965(97)
10 10.01293695(41) 0.199(7)
11 11.00930536(45) 0.801(7)
12 12.0143527(14)
13 13.0177802(12)
14 14.025404(23)
15 15.031088(23)
16 16.039842(26)
17 17.04699(18)
18 18.05566(18)
19 19.06310(43#)
20 20.07207(75#)
