Molybdenum-103

Properties and data of the isotope ¹⁰³Mo.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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

General data

Name of the isotope:Molybdenum-103; Mo-103Symbol:¹⁰³Mo or 10342MoMass number A:103 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:61Isotopic mass:102.913085(10) u (atomic weight of Molybdenum-103)Nuclide mass:102.8900457 u (calculated nuclear mass without electrons)Mass excess:-80.9608 MeVMass defect:0.94412622000002 u (per nucleus)Nuclear binding energy:879.44790917 MeV (per nucleus)
8.53832922 MeV (average binding energy per nucleon)Separation energy:S_N = 5.466(12) MeV (first neutron)
S_P = 11.945(10) MeV (first proton)Half-life:67.5(15) sDecay constant λ:0.010268847119407 s^-1Specific activity α:6.062788610021 × 10⁺¹⁹ Bq g^-1
1638591516.2221 Ci g^-1Spin and parity:
(nuclear angular momentum)(3/2+)Magnetic dipole moment:μ(μ_N) = -0.27(2)Nuclear g-factor:g_l = -0.18Year of discovery:1963

Radioactive Decay

Half-life T_½ = 67.5(15) s respectively 6.75 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁰³Tc	100 %	3.6343(13) MeV

Parent Nuclides

Direct parent isotopes are: ¹⁰³Nb, ²⁵²Cf.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 61) and isobaric (same nucleon number A = 103) with Molybdenum-103. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 61	Isobar A = 103
34	⁹⁵Se
35	⁹⁶Br
36	⁹⁷Kr
37	⁹⁸Rb	¹⁰³Rb
38	⁹⁹Sr	¹⁰³Sr
39	¹⁰⁰Y	¹⁰³Y
40	¹⁰¹Zr	¹⁰³Zr
41	¹⁰²Nb	¹⁰³Nb
42	¹⁰³Mo	¹⁰³Mo
43	¹⁰⁴Tc	¹⁰³Tc
44	¹⁰⁵Ru	¹⁰³Ru
45	¹⁰⁶Rh	¹⁰³Rh
46	¹⁰⁷Pd	¹⁰³Pd
47	¹⁰⁸Ag	¹⁰³Ag
48	¹⁰⁹Cd	¹⁰³Cd
49	¹¹⁰In	¹⁰³In
50	¹¹¹Sn	¹⁰³Sn
51	¹¹²Sb	¹⁰³Sb
52	¹¹³Te
53	¹¹⁴I
54	¹¹⁵Xe
55	¹¹⁶Cs
56	¹¹⁷Ba
57	¹¹⁸La
58	¹¹⁹Ce