Technetium-88m

Properties and data of the isotope ^88mTc.

Contents

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

General data

Name of the isotope:Technetium-88m; Tc-88mSymbol:^88mTc or 88m43TcMass number A:88 (= number of nucleons)Atomic number Z:43 (= number of protons)Neutrons N:45Isotopic mass:87.93268(22) u (atomic weight of Technetium-88m)
Excitation energy: W+95 keVNuclide mass:87.9090922 u (calculated nuclear mass without electrons)Mass excess:-62.70818 MeVMass defect:0.79371759599999 u (per nucleus)Nuclear binding energy:739.34317837 MeV (per nucleus)
8.40162703 MeV (average binding energy per nucleon)Half-life:146(12) nsDecay constant λ:4747583.4284928 s^-1Specific activity α:3.286277718469 × 10⁺²⁸ Bq g^-1
8.881831671539 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)

Radioactive Decay

Half-life T_½ = 146(12) ns respectively 1.46 × 10^-7 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	⁸⁸Tc	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
⁸⁸Tc		X: 6.4(8) s Y: 5.8(2) s	X: (5+,6+,7+) Y: (2+, 3+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 45) and isobaric (same nucleon number A = 88) with Technetium-88m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 45	Isobar A = 88
23	⁶⁸V
25	⁷⁰Mn
26	⁷¹Fe
27	⁷²Co
28	⁷³Ni
29	⁷⁴Cu
30	⁷⁵Zn
31	⁷⁶Ga
32	⁷⁷Ge	⁸⁸Ge
33	⁷⁸As	⁸⁸As
34	⁷⁹Se	⁸⁸Se
35	⁸⁰Br	⁸⁸Br
36	⁸¹Kr	⁸⁸Kr
37	⁸²Rb	⁸⁸Rb
38	⁸³Sr	⁸⁸Sr
39	⁸⁴Y	⁸⁸Y
40	⁸⁵Zr	⁸⁸Zr
41	⁸⁶Nb	⁸⁸Nb
42	⁸⁷Mo	⁸⁸Mo
43	⁸⁸Tc	⁸⁸Tc
44	⁸⁹Ru	⁸⁸Ru
45	⁹⁰Rh
46	⁹¹Pd
47	⁹²Ag