Technetium-92m

Properties and data of the isotope ^92mTc.

Contents

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

General data

Name of the isotope:Technetium-92m; Tc-92mSymbol:^92mTc or 92m43TcMass number A:92 (= number of nucleons)Atomic number Z:43 (= number of protons)Neutrons N:49Isotopic mass:91.915270(3) u (atomic weight of Technetium-92m)
Excitation energy: 270.09(8)Nuclide mass:91.8916822 u (calculated nuclear mass without electrons)Mass excess:-78.92549 MeVMass defect:0.84578725999999 u (per nucleus)Nuclear binding energy:787.84575797 MeV (per nucleus)
8.56354085 MeV (average binding energy per nucleon)Half-life:1.03(7) μsDecay constant λ:672958.4277281 s^-1Specific activity α:4.453462027099 × 10⁺²⁷ Bq g^-1
1.203638385702 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)(4+)

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
⁹²Tc		4.25(15) min	(8)+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 49) and isobaric (same nucleon number A = 92) with Technetium-92m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 49	Isobar A = 92
27	⁷⁶Co
28	⁷⁷Ni
29	⁷⁸Cu
30	⁷⁹Zn
31	⁸⁰Ga
32	⁸¹Ge
33	⁸²As	⁹²As
34	⁸³Se	⁹²Se
35	⁸⁴Br	⁹²Br
36	⁸⁵Kr	⁹²Kr
37	⁸⁶Rb	⁹²Rb
38	⁸⁷Sr	⁹²Sr
39	⁸⁸Y	⁹²Y
40	⁸⁹Zr	⁹²Zr
41	⁹⁰Nb	⁹²Nb
42	⁹¹Mo	⁹²Mo
43	⁹²Tc	⁹²Tc
44	⁹³Ru	⁹²Ru
45	⁹⁴Rh	⁹²Rh
46	⁹⁵Pd	⁹²Pd
47	⁹⁶Ag	⁹²Ag
48	⁹⁷Cd
49	⁹⁸In
50	⁹⁹Sn