Rhodium-107

Properties and data of the isotope ¹⁰⁷Rh.

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-107; Rh-107Symbol:¹⁰⁷Rh or 10745RhMass number A:107 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:62Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.3777777777778 (= neutron-proton ratio)Neutron excess (N-Z):17Isotopic mass:106.906748(13) u (atomic weight of Rhodium-107)Nuclide mass:106.8820632 u (calculated nuclear mass without electrons)Mass excess:-86.86368 MeVMass defect:0.982603232 u (per nucleus)Nuclear binding energy:915.28901499 MeV (per nucleus)
8.55410294 MeV (average binding energy per nucleon)Separation energy:S_N = 8.572(13) MeV (first neutron)
S_P = 7.829(13) MeV (first proton)Half-life:21.7(4) minDecay constant λ:0.00053237110642085 s^-1Specific activity α:3.024541313798 × 10⁺¹⁸ Bq g^-1
81744359.8324 Ci g^-1Spin and parity:
(nuclear angular momentum)7/2+Year of discovery:1951

Radioactive Decay

Half-life T_½ = 21.7(4) min (minutes) respectively 1.302 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁰⁷Pd	100 %	1.5109(12) MeV

Parent Nuclides

Direct parent isotope is: ¹⁰⁷Ru.

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
^107mRh	268.36(4) keV	10 μs	1/2-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 62) and isobaric (same nucleon number A = 107) with Rhodium-107. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 62	Isobar A = 107
35	⁹⁷Br
36	⁹⁸Kr
37	⁹⁹Rb
38	¹⁰⁰Sr	¹⁰⁷Sr
39	¹⁰¹Y	¹⁰⁷Y
40	¹⁰²Zr	¹⁰⁷Zr
41	¹⁰³Nb	¹⁰⁷Nb
42	¹⁰⁴Mo	¹⁰⁷Mo
43	¹⁰⁵Tc	¹⁰⁷Tc
44	¹⁰⁶Ru	¹⁰⁷Ru
45	¹⁰⁷Rh	¹⁰⁷Rh
46	¹⁰⁸Pd	¹⁰⁷Pd
47	¹⁰⁹Ag	¹⁰⁷Ag
48	¹¹⁰Cd	¹⁰⁷Cd
49	¹¹¹In	¹⁰⁷In
50	¹¹²Sn	¹⁰⁷Sn
51	¹¹³Sb	¹⁰⁷Sb
52	¹¹⁴Te	¹⁰⁷Te
53	¹¹⁵I
54	¹¹⁶Xe
55	¹¹⁷Cs
56	¹¹⁸Ba
57	¹¹⁹La
58	¹²⁰Ce
59	¹²¹Pr