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Encyclopedia > Isotopes of technetium

Technetium (Tc)
Has no stable isotopes. A standard atomic mass cannot be given. General Name, Symbol, Number technetium, Tc, 43 Chemical series transition metals Group, Period, Block 7, 5, d Appearance silvery gray metal Atomic mass (98) g/mol Electron configuration [Kr] 4d5 5s2 Electrons per shell 2, 8, 18, 13, 2 Physical properties Phase solid Density (near r. ...


Table

Z(p) N(n) isotopic mass (u) nuclide
symbol		 representative
isotopic
composition
(mole fraction)		 range of natural
variation
(mole fraction)
43 42 84.94883(43)# Tc-85
43 43 85.94288(32)# Tc-86
43 44 86.93653(32)# Tc-87
43 45 87.93268(22)# Tc-88
43 46 88.92717(22)# Tc-89
43 47 89.92356(26) Tc-90
43 48 90.91843(22) Tc-91
43 49 91.915260(28) Tc-92
43 50 92.910249(4) Tc-93
43 51 93.909657(5) Tc-94
43 52 94.907657(6) Tc-95
43 53 95.907871(6) Tc-96
43 54 96.906365(5) Tc-97
43 55 97.907216(4) Tc-98
43 56 98.9062547(21) Tc-99
43 57 99.9076578(24) Tc-100
43 58 100.907315(26) Tc-101
43 59 101.909215(10) Tc-102
43 60 102.909181(11) Tc-103
43 61 103.91145(5) Tc-104
43 62 104.91166(6) Tc-105
43 63 105.914358(14) Tc-106
43 64 106.91508(16) Tc-107
43 65 107.91846(14) Tc-108
43 66 108.91998(10) Tc-109
43 67 109.92382(8) Tc-110
43 68 110.92569(12) Tc-111
43 69 111.92915(13) Tc-112
43 70 112.93159(32)# Tc-113
43 71 113.93588(64)# Tc-114
43 72 114.93869(75)# Tc-115
43 73 115.94337(75)# Tc-116
43 74 116.94648(75)# Tc-117
43 75 117.95148(97)# Tc-118

Properties In physics, the proton (Greek proton = first) is a subatomic particle with an electric charge of one positive fundamental unit (1. ... Properties In physics, the neutron is a subatomic particle with no net electric charge and a mass of 939. ...

Notes

  • Values marked # are not purely derived from experimental data, but at least partly from systematic trends.
  • Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values from Ame2003 denote one standard deviation. Values from IUPAC are expanded uncertainties.

References

  • 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). Pure Appl. Chem., Vol. 75, No. 6, pp. 683-800, (2003).


Isotopes of molybdenum Isotopes of technetium Isotopes of ruthenium




 

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