Rhodium-97m

Properties and data of the isotope ^97mRh.

Contents

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

General data

Name of the isotope:Rhodium-97m; Rh-97mSymbol:^97mRh or 97m45RhMass number A:97 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:52Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.1555555555556 (= neutron-proton ratio)Neutron excess (N-Z):7Excitation energy:258.76(18) keVIsotopic mass:96.91133(4) u (atomic weight of Rhodium-97m)Nuclide mass:96.8866452 u (calculated nuclear mass without electrons)Mass excess:-82.59557 MeVMass defect:0.891372072 u (per nucleus)Nuclear binding energy:830.30773684 MeV (per nucleus)
8.55987358 MeV (average binding energy per nucleon)Half-life:46.2(16) minDecay constant λ:0.0002500530954401 s^-1Specific activity α:1.568598920003 × 10⁺¹⁸ Bq g^-1
42394565.405503 Ci g^-1Spin and parity:
(nuclear angular momentum)1/2-

Radioactive Decay

Half-life T_½ = 46.2(16) min (minutes) respectively 2.772 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	⁹⁷Ru	94.4(6) %
Iso	⁹⁷Rh	5.6(6) %

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
⁹⁷Rh		30.7(6) min	9/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 52) and isobaric (same nucleon number A = 97) with Rhodium-97m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 52	Isobar A = 97
28	⁸⁰Ni
29	⁸¹Cu
30	⁸²Zn
31	⁸³Ga
32	⁸⁴Ge
33	⁸⁵As
34	⁸⁶Se
35	⁸⁷Br	⁹⁷Br
36	⁸⁸Kr	⁹⁷Kr
37	⁸⁹Rb	⁹⁷Rb
38	⁹⁰Sr	⁹⁷Sr
39	⁹¹Y	⁹⁷Y
40	⁹²Zr	⁹⁷Zr
41	⁹³Nb	⁹⁷Nb
42	⁹⁴Mo	⁹⁷Mo
43	⁹⁵Tc	⁹⁷Tc
44	⁹⁶Ru	⁹⁷Ru
45	⁹⁷Rh	⁹⁷Rh
46	⁹⁸Pd	⁹⁷Pd
47	⁹⁹Ag	⁹⁷Ag
48	¹⁰⁰Cd	⁹⁷Cd
49	¹⁰¹In	⁹⁷In
50	¹⁰²Sn
51	¹⁰³Sb