Rhodium-103m

Properties and data of the isotope ^103mRh.

Contents

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

General data

Name of the isotope:Rhodium-103m; Rh-103mSymbol:^103mRh or 103m45RhMass number A:103 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:58Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.2888888888889 (= neutron-proton ratio)Neutron excess (N-Z):13Excitation energy:39.753(6) keVIsotopic mass:102.90550(2) u (atomic weight of Rhodium-103m)Nuclide mass:102.8808152 u (calculated nuclear mass without electrons)Mass excess:-88.02618 MeVMass defect:0.949191568 u (per nucleus)Nuclear binding energy:884.16625044 MeV (per nucleus)
8.58413835 MeV (average binding energy per nucleon)Half-life:56.114(9) minDecay constant λ:0.00020587470166683 s^-1Specific activity α:1.215496522485 × 10⁺¹⁸ Bq g^-1
32851257.36447 Ci g^-1Spin and parity:
(nuclear angular momentum)7/2+Magnetic dipole moment:μ(μ_N) = + 4.50(5)Nuclear g-factor:g_l = 1.2857142857143

Radioactive Decay

Half-life T_½ = 56.114(9) min (minutes) respectively 3.36684 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	¹⁰³Rh	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
¹⁰³Rh		stable	1/2-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 58) and isobaric (same nucleon number A = 103) with Rhodium-103m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 58	Isobar A = 103
32	⁹⁰Ge
33	⁹¹As
34	⁹²Se
35	⁹³Br
36	⁹⁴Kr
37	⁹⁵Rb	¹⁰³Rb
38	⁹⁶Sr	¹⁰³Sr
39	⁹⁷Y	¹⁰³Y
40	⁹⁸Zr	¹⁰³Zr
41	⁹⁹Nb	¹⁰³Nb
42	¹⁰⁰Mo	¹⁰³Mo
43	¹⁰¹Tc	¹⁰³Tc
44	¹⁰²Ru	¹⁰³Ru
45	¹⁰³Rh	¹⁰³Rh
46	¹⁰⁴Pd	¹⁰³Pd
47	¹⁰⁵Ag	¹⁰³Ag
48	¹⁰⁶Cd	¹⁰³Cd
49	¹⁰⁷In	¹⁰³In
50	¹⁰⁸Sn	¹⁰³Sn
51	¹⁰⁹Sb	¹⁰³Sb
52	¹¹⁰Te
53	¹¹¹I
54	¹¹²Xe
55	¹¹³Cs
56	¹¹⁴Ba