Izotopii bromului sunt reprezentați în tabelul următor:
Izotop Z (p) N (n) Masă izotopică (u.a.m) Tipul dezintegrăriiAbrevieri:CE: Captură de electronTI: Tranziție izomerică Izotop descendentIzotopii stabili sunt trecuți cu caractere boldate Spin nuclear Abundență izotopică(fracție molară) Abundență naturală(fracție molară) Energie de dezintegrare 66Br 35 31 p 65Se 67Br 35 32 66,96479(54)# p 66Se 1/2-# 68Br 35 33 67,95852(38)# <1,2 µs p 67Se 3+# 69Br 35 34 68,95011(11)# <24 ns p 68Se 1/2-# 70Br 35 35 69,94479(33)# 79,1(8) ms β+ 70Se 0+# 70mBr 2292,2(8) keV2,2(2) s β+ 70Se(9+) IT 70Br 71Br 35 36 70,93874(61) 21,4(6) s β+ 71Se (5/2)- 72Br 35 37 71,93664(6) 78,6(24) s β+ 72Se 1+ 72mBr 100,92(3) keV10.6(3) s IT (>99.9%) 72Br1- β+ (<.1%) 72Se 73Br 35 38 72,.93169(5) 3,4(2) min β+ 73Se 1/2- 74Br 35 39 73,929891(16) 25,4(3) min β+ 74Se (0-) 74mBr 13,58(21) keV 46(2) min β+ 74Se 4(+#) 75Br 35 40 74,925776(15) 96,7(13) min β+ 75Se 3/2- 76Br 35 41 75,924541(10) 16,2(2) h β+ 76Se 1- 76mBr 102,58(3) keV1.31(2) s IT (99.4%) 76Br(4)+ β+ (.6%) 76Se 77Br 35 42 76,921379(3) 57,036(6) h β+ 77Se 3/2- 77mBr 105,86(8) keV 4,28(10) min IT 77Br 9/2+78Br 35 4377,921146(4)6,46(4) min β+ (99,99%) 78Se1+ β- (0.01%) 78Kr 78mBr 180,82(13) keV 119,2(10) µs (4+) 79Br 35 44 78,9183371(22)Stabil 3/2- 0.5069(7) 79mBr 207,61(9) keV 4,86(4) s IT 79Br (9/2+)80Br 35 4579,9185293(22)17,68(2) min β- (91.7%) 80Kr1+ β+ (8.3%) 80Se 80mBr 85,843(4) keV 4,4205(8) h IT 80Br 5- 81Br 35 46 80,9162906(21)Stabili 3/2- 0,4931(7) 81mBr 536,20(9) keV 34,6(28) µs 9/2+ 82Br 35 47 81,9168041(21) 35,282(7) h β- 82Kr 5- 82mBr 45,9492(10) keV6,13(5) min IT 82Br2- β- 82Kr 83Br 35 48 82,915180(5) 2,40(2) h β- 83Kr 3/2- 83mBr 3068,8(6) keV 700(100) ns (19/2-) 84Br 35 49 83,916479(16) 31,80(8) min β- 84Kr 2- 84m1Br 320(10) keV 6,0(2) min β- 84Kr 6- 84m2Br 408,2(4) keV <140 ns 1+ 85Br 35 50 84,915608(21) 2,90(6) min β- 85Kr 3/2- 86Br 35 51 85,918798(12) 55,1(4) s β- 86Kr (2-)87Br 35 5286,920711(19)55,65(13) s β- (97,48%) 87Kr3/2- β-, n (2,52%) 86Kr88Br 35 5387,92407(4)16,29(6) s β- (93,42%) 88Kr(2-) β-, n (6,48%) 87Kr 88mBr 272,7(3) keV 5,4(7) µs89Br 35 5488,92639(6)4,40(3) s β- (86,2%) 89Kr(3/2-,5/2-) β-, n (13,8%) 88Kr90Br 35 5589,93063(8)1,91(1) s β- (74,8%) 90Kr β-, n (25,2%) 89Kr91Br 35 5690,93397(8)541(5) ms β- (80%) 91Kr3/2-# β-, n (20%) 90Kr92Br 35 5791,93926(5)0,343(15) s β- (66,9%) 92Kr(2-) β-, n (33,1%) 91Kr93Br 35 5892,94305(32)#102(10) ms β- (89%) 93Kr3/2-# β-, n (11%) 92Kr94Br 35 5993,94868(43)#70(20) ms β- (70%) 94Kr β-, n (30%) 93Kr 95Br 35 60 94,95287(54)# 50# ms [>300 ns] 3/2-# 96Br 35 61 95,95853(75)# 20# ms [>300 ns] 97Br 35 62 96,96280(86)# 10# ms [>300 ns] 3/2-#
Bibliografie V. Vasilescu (coordonator) Biofizică medicală, EDP 1977 anexa 8, p 309-315 http://en.wikipedia.org/wiki/Isotopes_of_bromine
Referințe
Brom