Periodic Table/Technetium/¹⁰⁹Tc

← 108Tc110Tc →

¹⁰⁹Tc

Technetium-109

Radioactive· Half-life: 905 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

43

Neutrons (N)

66

Mass Number (A)

109

Atomic Mass

108.920254AMU

Spin / Parity

5/2+

Binding E/A

8.243keV

Natural Abundance

Trace / None

Half-life

905 ms

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁻

100.0%

β⁻n

0.1%

Decay Chain

¹⁰⁹TcTechnetium905 ms

β⁻100.0%

β⁻n¹⁰⁸Ru0.08%

¹⁰⁹RuRuthenium34.4 s

β⁻100.0%

¹⁰⁹RhRhodium1.35 min

β⁻100.0%

¹⁰⁹PdPalladium13.6 h

β⁻100.0%

¹⁰⁹AgSilverSTABLE

5-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Technetium

83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122

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