Molybdenum-104

Properties and data of the isotope ¹⁰⁴Mo.

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-104; Mo-104Symbol:¹⁰⁴Mo or 10442MoMass number A:104 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:62Isotopic mass:103.913741(10) u (atomic weight of Molybdenum-104)Nuclide mass:103.8907017 u (calculated nuclear mass without electrons)Mass excess:-80.34974 MeVMass defect:0.952135136 u (per nucleus)Nuclear binding energy:886.90816637 MeV (per nucleus)
8.52796314 MeV (average binding energy per nucleon)Separation energy:S_N = 7.461(13) MeV (first neutron)
S_P = 12.61(1) MeV (first proton)Half-life:60(2) sDecay constant λ:0.011552453009332 s^-1Specific activity α:6.75441740776 × 10⁺¹⁹ Bq g^-1
1825518218.3154 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:4.5249(51) femtometer fmYear of discovery:1962

Radioactive Decay

Half-life T_½ = 60(2) s respectively 6.0 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁰⁴Tc	100 %	2.153(24) MeV

Parent Nuclides

Direct parent isotopes are: ¹⁰⁴Nb, ²⁵²Cf, ²⁴⁸Cm.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 62) and isobaric (same nucleon number A = 104) with Molybdenum-104. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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