Rhodium-113

Properties and data of the isotope ¹¹³Rh.

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-113; Rh-113Symbol:¹¹³Rh or 11345RhMass number A:113 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:68Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.5111111111111 (= neutron-proton ratio)Neutron excess (N-Z):23Isotopic mass:112.915440(8) u (atomic weight of Rhodium-113)Nuclide mass:112.8907552 u (calculated nuclear mass without electrons)Mass excess:-78.76713 MeVMass defect:1.025900728 u (per nucleus)Nuclear binding energy:955.62037273 MeV (per nucleus)
8.45681746 MeV (average binding energy per nucleon)Separation energy:S_N = 7.11(4) MeV (first neutron)
S_P = 10.426(12) MeV (first proton)Half-life:2.80(12) sDecay constant λ:0.24755256448569 s^-1Specific activity α:1.331068226403 × 10⁺²¹ Bq g^-1
35974816929.814 Ci g^-1Spin and parity:
(nuclear angular momentum)(7/2+)Year of discovery:1971

Radioactive Decay

Half-life T_½ = 2.80(12) s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹³Pd	100 %	4.824(10) MeV

Parent Nuclides

Direct parent isotope is: ¹¹³Ru.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 68) and isobaric (same nucleon number A = 113) with Rhodium-113. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 68	Isobar A = 113
38	¹⁰⁶Sr
39	¹⁰⁷Y
40	¹⁰⁸Zr
41	¹⁰⁹Nb	¹¹³Nb
42	¹¹⁰Mo	¹¹³Mo
43	¹¹¹Tc	¹¹³Tc
44	¹¹²Ru	¹¹³Ru
45	¹¹³Rh	¹¹³Rh
46	¹¹⁴Pd	¹¹³Pd
47	¹¹⁵Ag	¹¹³Ag
48	¹¹⁶Cd	¹¹³Cd
49	¹¹⁷In	¹¹³In
50	¹¹⁸Sn	¹¹³Sn
51	¹¹⁹Sb	¹¹³Sb
52	¹²⁰Te	¹¹³Te
53	¹²¹I	¹¹³I
54	¹²²Xe	¹¹³Xe
55	¹²³Cs	¹¹³Cs
56	¹²⁴Ba
57	¹²⁵La
58	¹²⁶Ce
59	¹²⁷Pr
60	¹²⁸Nd
61	¹²⁹Pm
62	¹³⁰Sm
63	¹³¹Eu