镉(原子量:112.411(8))共有50个同位素,其中有6个同位素是稳定的。
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符号
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Z
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N
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同位素质量(u) [n 1][n 2]
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半衰期 [n 1][n 2][n 3]
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衰变 方式[2]
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衰变 产物 [n 4][n 5]
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原子核 自旋[n 1]
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相对丰度 (莫耳分率)[n 2]
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相对丰度 的变化量 (莫耳分率)
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激发能量[n 1][n 2]
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95Cd[3][4]
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48
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47
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94.94987(64)#
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5# ms
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9/2+#
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96Cd[3][4]
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48
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48
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95.93977(54)#
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1# s
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β+
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96Ag
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0+
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97Cd[3][4][5]
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48
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49
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96.93494(43)#
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2.8(6) s
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β+ (>99.9%)
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97Ag
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9/2+#
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β+, p (<.1%)
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96Pd
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98Cd
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48
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50
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97.92740(8)
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9.2(3) s
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β+ (99.975%)
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98Ag
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0+
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β+, p (.025%)
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97Ag
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98mCd
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2427.5(6) keV
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190(20) ns
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8+#
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99Cd
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48
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51
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98.92501(22)#
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16(3) s
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β+ (99.78%)
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99Ag
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(5/2+)
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β+, p (.21%)
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98Pd
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β+, α (10−4%)
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94Rh
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100Cd
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48
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52
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99.92029(10)
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49.1(5) s
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β+
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100Ag
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0+
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101Cd
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48
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53
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100.91868(16)
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1.36(5) min
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β+
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101Ag
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(5/2+)
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102Cd
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48
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54
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101.91446(3)
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5.5(5) min
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β+
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102Ag
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0+
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103Cd
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48
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55
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102.913419(17)
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7.3(1) min
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β+
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103Ag
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5/2+
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104Cd
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48
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56
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103.909849(10)
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57.7(10) min
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β+
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104Ag
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0+
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105Cd
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48
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57
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104.909468(12)
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55.5(4) min
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β+
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105Ag
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5/2+
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106Cd
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48
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58
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105.906459(6)
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观测上稳定[n 6]
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0+
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0.0125(6)
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107Cd
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48
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59
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106.906618(6)
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6.50(2) h
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β+
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107mAg
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5/2+
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108Cd
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48
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60
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107.904184(6)
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观测上稳定[n 7]
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0+
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0.0089(3)
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109Cd
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48
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61
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108.904982(4)
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461.4(12) d
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ε
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109Ag
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5/2+
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109m1Cd
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59.6(4) keV
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12(2) µs
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1/2+
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109m2Cd
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463.0(5) keV
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10.9(5) µs
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11/2-
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110Cd
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48
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62
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109.9030021(29)
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稳定
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0+
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0.1249(18)
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111Cd[n 8]
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48
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63
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110.9041781(29)
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稳定
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1/2+
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0.1280(12)
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111mCd
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396.214(21) keV
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48.50(9) min
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IT
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111Cd
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11/2-
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112Cd[n 8]
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48
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64
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111.9027578(29)
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稳定
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0+
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0.2413(21)
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113Cd[n 8][n 9]
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48
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65
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112.9044017(29)
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8.04(5)×1015 a
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β−
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113In
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1/2+
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0.1222(12)
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113mCd[n 8]
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263.54(3) keV
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14.1(5) a
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β− (99.86%)
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113In
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11/2-
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IT (.139%)
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113Cd
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114 Cd [n 8]
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48
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66
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113.9033585(29)
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观测上稳定[n 10]
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0+
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0.2873(42)
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115Cd[n 8]
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48
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67
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114.9054310(29)
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53.46(5) h
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β−
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115mIn
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1/2+
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115mCd
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181.0(5) keV
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44.56(24) d
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β−
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115mIn
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(11/2)-
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116Cd[n 8][n 9]
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48
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68
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115.904756(3)
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3.1(4)×1019 a
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β−β−
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116Sn
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0+
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0.0749(18)
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117Cd
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48
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69
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116.907219(4)
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2.49(4) h
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β−
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117mIn
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1/2+
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117mCd
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136.4(2) keV
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3.36(5) h
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β−
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117mIn
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(11/2)-
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118Cd
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48
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70
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117.906915(22)
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50.3(2) min
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β−
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118In
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0+
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119Cd
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48
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71
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118.90992(9)
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2.69(2) min
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β−
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119mIn
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(3/2+)
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119mCd
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146.54(11) keV
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2.20(2) min
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β−
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119mIn
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(11/2-)#
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120Cd
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48
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72
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119.90985(2)
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50.80(21) s
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β−
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120In
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0+
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121Cd
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48
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73
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120.91298(9)
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13.5(3) s
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β−
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121mIn
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(3/2+)
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121mCd
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214.86(15) keV
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8.3(8) s
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β−
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121mIn
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(11/2-)
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122Cd
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48
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74
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121.91333(5)
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5.24(3) s
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β−
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122In
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0+
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123Cd
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48
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75
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122.91700(4)
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2.10(2) s
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β−
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123mIn
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(3/2)+
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123mCd
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316.52(23) keV
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1.82(3) s
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β−
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123In
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(11/2-)
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IT
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23Cd
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124Cd
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48
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76
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123.91765(7)
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1.25(2) s
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β−
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124In
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0+
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125Cd
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48
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77
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124.92125(7)
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0.65(2) s
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β−
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125mIn
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(3/2+)#
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125mCd
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50(70) keV
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570(90) ms
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β−
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125In
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11/2-#
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126Cd
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48
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78
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125.92235(6)
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0.515(17) s
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β−
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126In
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0+
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127Cd
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48
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79
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126.92644(8)
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0.37(7) s
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β−
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127mIn
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(3/2+)
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128Cd
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48
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80
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127.92776(32)
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0.28(4) s
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β−
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128In
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0+
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129Cd
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48
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81
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128.93215(32)#
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242(8) ms
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β− (>99.9%)
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129In
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3/2+#
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IT (<.1%)
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129Cd
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129mCd
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0(200)# keV
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104(6) ms
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11/2-#
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130Cd
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48
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82
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129.9339(3)
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162(7) ms
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β− (96%)
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130In
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0+
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β−, n (4%)
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129In
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131Cd
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48
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83
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130.94067(32)#
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68(3) ms
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7/2-#
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132Cd
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48
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84
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131.94555(54)#
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97(10) ms
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0+
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画上#号的数据代表没有经过实验的证明,仅为理论推测。
存档副本. [2015-09-17]. (原始内容存档于2017-02-19).
National Nuclear Data Center, Brookhaven National Laboratory, information extracted from the NuDat 2.1 database (页面存档备份,存于互联网档案馆). (Retrieved Sept. 2005, from the code of the popup boxes).
David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report) (页面存档备份,存于互联网档案馆). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005) (页面存档备份,存于互联网档案馆).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties (页面存档备份,存于互联网档案馆), Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (页面存档备份,存于互联网档案馆) (retrieved Sept. 2005).
- David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.