Technetium-86m

Properties and data of the isotope ^86mTc.

Contents

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

General data

Name of the isotope:Technetium-86m; Tc-86mSymbol:^86mTc or 86m43TcMass number A:86 (= number of nucleons)Atomic number Z:43 (= number of protons)Neutrons N:43Isotopic mass:85.94464(32) u (atomic weight of Technetium-86m)
Excitation energy: 1534 keVNuclide mass:85.9210522 u (calculated nuclear mass without electrons)Mass excess:-51.56751 MeVMass defect:0.76442776399999 u (per nucleus)Nuclear binding energy:712.0598756 MeV (per nucleus)
8.279766 MeV (average binding energy per nucleon)Half-life:1.10(14) μsDecay constant λ:630133.80050904 s^-1Specific activity α:4.464417067379 × 10⁺²⁷ Bq g^-1
1.206599207399 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)(6+)Isobaric spin: 0

Radioactive Decay

Half-life T_½ = 1.10(14) μs respectively 1.10 × 10^-6 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	⁸⁶Tc	100 %

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
⁸⁶Tc		55(7) ms	(0+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 43) and isobaric (same nucleon number A = 86) with Technetium-86m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 43	Isobar A = 86
22	⁶⁵Ti
23	⁶⁶V
24	⁶⁷Cr
25	⁶⁸Mn
26	⁶⁹Fe
27	⁷⁰Co
28	⁷¹Ni
29	⁷²Cu
30	⁷³Zn
31	⁷⁴Ga	⁸⁶Ga
32	⁷⁵Ge	⁸⁶Ge
33	⁷⁶As	⁸⁶As
34	⁷⁷Se	⁸⁶Se
35	⁷⁸Br	⁸⁶Br
36	⁷⁹Kr	⁸⁶Kr
37	⁸⁰Rb	⁸⁶Rb
38	⁸¹Sr	⁸⁶Sr
39	⁸²Y	⁸⁶Y
40	⁸³Zr	⁸⁶Zr
41	⁸⁴Nb	⁸⁶Nb
42	⁸⁵Mo	⁸⁶Mo
43	⁸⁶Tc	⁸⁶Tc
44	⁸⁷Ru	⁸⁶Ru