Rhodium-106m

Properties and data of the isotope ^106mRh.

Contents

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

General data

Name of the isotope:Rhodium-106m; Rh-106mSymbol:^106mRh or 106m45RhMass number A:106 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:61Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.3555555555556 (= neutron-proton ratio)Neutron excess (N-Z):16Excitation energy:137(13) keVIsotopic mass:105.907286(6) u (atomic weight of Rhodium-106m)Nuclide mass:105.8826012 u (calculated nuclear mass without electrons)Mass excess:-86.36253 MeVMass defect:0.97340031600001 u (per nucleus)Nuclear binding energy:906.71655395 MeV (per nucleus)
8.55392975 MeV (average binding energy per nucleon)Half-life:131(2) minDecay constant λ:8.818666419337 × 10^-5 s^-1Specific activity α:5.057833464194 × 10⁺¹⁷ Bq g^-1
13669820.173499 Ci g^-1Spin and parity:
(nuclear angular momentum)(6)+

Radioactive Decay

Half-life T_½ = 131(2) min (minutes) respectively 7.860 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁰⁶Pd	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
¹⁰⁶Rh		30.07(35) s	1+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 61) and isobaric (same nucleon number A = 106) with Rhodium-106m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 61	Isobar A = 106
34	⁹⁵Se
35	⁹⁶Br
36	⁹⁷Kr
37	⁹⁸Rb
38	⁹⁹Sr	¹⁰⁶Sr
39	¹⁰⁰Y	¹⁰⁶Y
40	¹⁰¹Zr	¹⁰⁶Zr
41	¹⁰²Nb	¹⁰⁶Nb
42	¹⁰³Mo	¹⁰⁶Mo
43	¹⁰⁴Tc	¹⁰⁶Tc
44	¹⁰⁵Ru	¹⁰⁶Ru
45	¹⁰⁶Rh	¹⁰⁶Rh
46	¹⁰⁷Pd	¹⁰⁶Pd
47	¹⁰⁸Ag	¹⁰⁶Ag
48	¹⁰⁹Cd	¹⁰⁶Cd
49	¹¹⁰In	¹⁰⁶In
50	¹¹¹Sn	¹⁰⁶Sn
51	¹¹²Sb	¹⁰⁶Sb
52	¹¹³Te	¹⁰⁶Te
53	¹¹⁴I
54	¹¹⁵Xe
55	¹¹⁶Cs
56	¹¹⁷Ba
57	¹¹⁸La
58	¹¹⁹Ce