Technetium-106

Properties and data of the isotope ¹⁰⁶Tc.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

See also: List of individual Technetium isotopes (and general data sources).

General data

Name of the isotope:Technetium-106; Tc-106Symbol:¹⁰⁶Tc or 10643TcMass number A:106 (= number of nucleons)Atomic number Z:43 (= number of protons)Neutrons N:63Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.4651162790698 (= neutron-proton ratio)Neutron excess (N-Z):20Isotopic mass:105.914357(13) u (atomic weight of Technetium-106)Nuclide mass:105.8907692 u (calculated nuclear mass without electrons)Mass excess:-79.77594 MeVMass defect:0.96800908400002 u (per nucleus)Nuclear binding energy:901.69465369 MeV (per nucleus)
8.50655334 MeV (average binding energy per nucleon)Separation energy:S_N = 5.56(4) MeV (first neutron)
S_P = 9.728(15) MeV (first proton)Half-life:35.6(6) sDecay constant λ:0.027076061740623 s^-1Specific activity α:1.552912930803 × 10⁺²⁰ Bq g^-1
4197061975.1449 Ci g^-1Spin and parity:
(nuclear angular momentum)(1.2)Year of discovery:1965

Radioactive Decay

Half-life T_½ = 35.6(6) s respectively 2.56 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁰⁶Ru	100 %	6.547(11) MeV

Parent Nuclides

Direct parent isotope is: ¹⁰⁶Mo.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 63) and isobaric (same nucleon number A = 106) with Technetium-106. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 63	Isobar A = 106
35	⁹⁸Br
36	⁹⁹Kr
37	¹⁰⁰Rb
38	¹⁰¹Sr	¹⁰⁶Sr
39	¹⁰²Y	¹⁰⁶Y
40	¹⁰³Zr	¹⁰⁶Zr
41	¹⁰⁴Nb	¹⁰⁶Nb
42	¹⁰⁵Mo	¹⁰⁶Mo
43	¹⁰⁶Tc	¹⁰⁶Tc
44	¹⁰⁷Ru	¹⁰⁶Ru
45	¹⁰⁸Rh	¹⁰⁶Rh
46	¹⁰⁹Pd	¹⁰⁶Pd
47	¹¹⁰Ag	¹⁰⁶Ag
48	¹¹¹Cd	¹⁰⁶Cd
49	¹¹²In	¹⁰⁶In
50	¹¹³Sn	¹⁰⁶Sn
51	¹¹⁴Sb	¹⁰⁶Sb
52	¹¹⁵Te	¹⁰⁶Te
53	¹¹⁶I
54	¹¹⁷Xe
55	¹¹⁸Cs
56	¹¹⁹Ba
57	¹²⁰La
58	¹²¹Ce
59	¹²²Pr