Question

uso de isotopos 77 Br? ​

Answer 1

Respuesta:

Símbolo

del nucleido Z(p) N(n)  

Masa isotópica (u)

 Vida media Proceso(s) de

decaimiento(s)1​n 1​ Isótopo(s)

hijo(s)n 2​ Espín

nuclear Composición

isotópica

representativa

(fracción molar) Rango de variación

natural

(fracción molar)

Energía de excitación

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) keV 2.2(2) s β+ 70Se (9+)  

TI 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) keV 10.6(3) s TI (>99.9%) 72Br 1−  

β+ (<0.1%) 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) keV 1.31(2) s TI (99.4%) 76Br (4)+  

β+ (0.6%) 76Se

77Br 35 42 76.921379(3) 57.036(6) h β+ 77Se 3/2−  

77mBr 105.86(8) keV 4.28(10) min TI 77Br 9/2+  

78Br 35 43 77.921146(4) 6.46(4) min β+ (99.99%) 78Se 1+  

β− (0.01%) 78Kr

78mBr 180.82(13) keV 119.2(10) µs   (4+)  

79Br 35 44 78.9183371(22) Estable 3/2− 0.5069(7)  

79mBr 207.61(9) keV 4.86(4) s TI 79Br (9/2+)  

80Br 35 45 79.9185293(22) 17.68(2) min β− (91.7%) 80Kr 1+  

β+ (8.3%) 80Se

80mBr 85.843(4) keV 4.4205(8) h TI 80Br 5−  

81Br 35 46 80.9162906(21) Estable 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) keV 6.13(5) min TI 82Br 2−  

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 52 86.920711(19) 55.65(13) s β− (97.48%) 87Kr 3/2−  

β−, n (2.52%) 86Kr

88Br 35 53 87.92407(4) 16.29(6) s β− (93.42%) 88Kr (2−)  

β−, n (6.48%) 87Kr

88mBr 272.7(3) keV 5.4(7) µs      

89Br 35 54 88.92639(6) 4.40(3) s β− (86.2%) 89Kr (3/2−,5/2−)  

β−, n (13.8%) 88Kr

90Br 35 55 89.93063(8) 1.91(1) s β− (74.8%) 90Kr    

β−, n (25.2%) 89Kr

91Br 35 56 90.93397(8) 541(5) ms β− (80%) 91Kr 3/2−#  

β−, n (20%) 90Kr

92Br 35 57 91.93926(5) 0.343(15) s β− (66.9%) 92Kr (2−)  

β−, n (33.1%) 91Kr

93Br 35 58 92.94305(32)# 102(10) ms β− (89%) 93Kr 3/2−#  

β−, n (11%) 92Kr

94Br 35 59 93.94868(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−#

Explicación: