Rhodium-95m

Properties and data of the isotope ^95mRh.

Contents

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

General data

Name of the isotope:Rhodium-95m; Rh-95mSymbol:^95mRh or 95m45RhMass number A:95 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:50Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.1111111111111 (= neutron-proton ratio)Neutron excess (N-Z):5Excitation energy:543.3(3) keVIsotopic mass:94.915898(4) u (atomic weight of Rhodium-95m)Nuclide mass:94.8912132 u (calculated nuclear mass without electrons)Mass excess:-78.34051 MeVMass defect:0.86947424 u (per nucleus)Nuclear binding energy:809.91003771 MeV (per nucleus)
8.52536882 MeV (average binding energy per nucleon)Half-life:1.96(4) minDecay constant λ:0.0058941086782308 s^-1Specific activity α:3.776080074902 × 10⁺¹⁹ Bq g^-1
1020562182.406 Ci g^-1Spin and parity:
(nuclear angular momentum)(1/2)-

Radioactive Decay

Half-life T_½ = 1.96(4) min (minutes) respectively 1.176 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	⁹⁵Ru	12(5) %
Iso	⁹⁵Rh	88(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
⁹⁵Rh		5.02(10) min	9/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 50) and isobaric (same nucleon number A = 95) with Rhodium-95m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 50	Isobar A = 95
28	⁷⁸Ni
29	⁷⁹Cu
30	⁸⁰Zn
31	⁸¹Ga
32	⁸²Ge
33	⁸³As
34	⁸⁴Se	⁹⁵Se
35	⁸⁵Br	⁹⁵Br
36	⁸⁶Kr	⁹⁵Kr
37	⁸⁷Rb	⁹⁵Rb
38	⁸⁸Sr	⁹⁵Sr
39	⁸⁹Y	⁹⁵Y
40	⁹⁰Zr	⁹⁵Zr
41	⁹¹Nb	⁹⁵Nb
42	⁹²Mo	⁹⁵Mo
43	⁹³Tc	⁹⁵Tc
44	⁹⁴Ru	⁹⁵Ru
45	⁹⁵Rh	⁹⁵Rh
46	⁹⁶Pd	⁹⁵Pd
47	⁹⁷Ag	⁹⁵Ag
48	⁹⁸Cd	⁹⁵Cd
49	⁹⁹In
50	¹⁰⁰Sn