Rhodium-98m

Properties and data of the isotope ^98mRh.

Contents

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

General data

Name of the isotope:Rhodium-98m; Rh-98mSymbol:^98mRh or 98m45RhMass number A:98 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:53Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.1777777777778 (= neutron-proton ratio)Neutron excess (N-Z):8Excitation energy:+x keVIsotopic mass:97.910708(13) u (atomic weight of Rhodium-98m)Nuclide mass:97.8860232 u (calculated nuclear mass without electrons)Mass excess:-83.17496 MeVMass defect:0.900658988 u (per nucleus)Nuclear binding energy:838.95844337 MeV (per nucleus)
8.56080044 MeV (average binding energy per nucleon)Half-life:3.6(2) minDecay constant λ:0.0032090147248146 s^-1Specific activity α:1.992282339633 × 10⁺¹⁹ Bq g^-1
538454686.38741 Ci g^-1Spin and parity:
(nuclear angular momentum)(5+)

Radioactive Decay

Half-life T_½ = 3.6(2) min (minutes) respectively 2.16 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	⁹⁸Ru	11(5) %
Iso	⁹⁸Rh	89(5) %

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
⁹⁸Rh		8.72(12) min	(2)+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 53) and isobaric (same nucleon number A = 98) with Rhodium-98m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 53	Isobar A = 98
29	⁸²Cu
30	⁸³Zn
31	⁸⁴Ga
32	⁸⁵Ge
33	⁸⁶As
34	⁸⁷Se
35	⁸⁸Br	⁹⁸Br
36	⁸⁹Kr	⁹⁸Kr
37	⁹⁰Rb	⁹⁸Rb
38	⁹¹Sr	⁹⁸Sr
39	⁹²Y	⁹⁸Y
40	⁹³Zr	⁹⁸Zr
41	⁹⁴Nb	⁹⁸Nb
42	⁹⁵Mo	⁹⁸Mo
43	⁹⁶Tc	⁹⁸Tc
44	⁹⁷Ru	⁹⁸Ru
45	⁹⁸Rh	⁹⁸Rh
46	⁹⁹Pd	⁹⁸Pd
47	¹⁰⁰Ag	⁹⁸Ag
48	¹⁰¹Cd	⁹⁸Cd
49	¹⁰²In	⁹⁸In
50	¹⁰³Sn	⁹⁸Sn
51	¹⁰⁴Sb
52	¹⁰⁵Te