Rhodium-93

Properties and data of the isotope ⁹³Rh.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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

General data

Name of the isotope:Rhodium-93; Rh-93Symbol:⁹³Rh or 9345RhMass number A:93 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:48Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.0666666666667 (= neutron-proton ratio)Neutron excess (N-Z):3Isotopic mass:92.9259128(28) u (atomic weight of Rhodium-93)Nuclide mass:92.901228 u (calculated nuclear mass without electrons)Mass excess:-69.01178 MeVMass defect:0.84212960800001 u (per nucleus)Nuclear binding energy:784.43867707 MeV (per nucleus)
8.43482448 MeV (average binding energy per nucleon)Separation energy:S_N = 14.084(5) MeV (first neutron)
S_P = 1.000(4) MeV (first proton)Half-life:12.2(7) sDecay constant λ:0.056815342668848 s^-1Specific activity α:3.719021701710 × 10⁺²⁰ Bq g^-1
10051410004.623 Ci g^-1Spin and parity:
(nuclear angular momentum)(9/2+)Year of discovery:1994

Radioactive Decay

Half-life T_½ = 12.2(7) s respectively 1.22 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	⁹³Ru	100 %	8.205(3) MeV

Parent Nuclides

Direct parent isotope is: ⁹³Pd.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 48) and isobaric (same nucleon number A = 93) with Rhodium-93. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 48	Isobar A = 93
26	⁷⁴Fe
27	⁷⁵Co
28	⁷⁶Ni
29	⁷⁷Cu
30	⁷⁸Zn
31	⁷⁹Ga
32	⁸⁰Ge
33	⁸¹As
34	⁸²Se	⁹³Se
35	⁸³Br	⁹³Br
36	⁸⁴Kr	⁹³Kr
37	⁸⁵Rb	⁹³Rb
38	⁸⁶Sr	⁹³Sr
39	⁸⁷Y	⁹³Y
40	⁸⁸Zr	⁹³Zr
41	⁸⁹Nb	⁹³Nb
42	⁹⁰Mo	⁹³Mo
43	⁹¹Tc	⁹³Tc
44	⁹²Ru	⁹³Ru
45	⁹³Rh	⁹³Rh
46	⁹⁴Pd	⁹³Pd
47	⁹⁵Ag	⁹³Ag
48	⁹⁶Cd
49	⁹⁷In
50	⁹⁸Sn