Molybdenum-107

Properties and data of the isotope ¹⁰⁷Mo.

Contents

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

General data

Name of the isotope:Molybdenum-107; Mo-107Symbol:¹⁰⁷Mo or 10742MoMass number A:107 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:65Isotopic mass:106.922113(10) u (atomic weight of Molybdenum-107)Nuclide mass:106.8990737 u (calculated nuclear mass without electrons)Mass excess:-72.55127 MeVMass defect:0.96975788400002 u (per nucleus)Nuclear binding energy:903.3236504 MeV (per nucleus)
8.44227711 MeV (average binding energy per nucleon)Separation energy:S_N = 4.488(13) MeV (first neutron)
S_P = 13.637(10) MeV (first proton)Half-life:3.5(5) sDecay constant λ:0.19804205158856 s^-1Specific activity α:1.125129368733 × 10⁺²¹ Bq g^-1
30408901857.654 Ci g^-1Spin and parity:
(nuclear angular momentum)(5/2+)Year of discovery:1972

Radioactive Decay

Half-life T_½ = 3.5(5) s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁰⁷Tc	100 %	6.198(13) MeV

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
^107mMo	65.4 keV	420(30) ns	(1/2+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 65) and isobaric (same nucleon number A = 107) with Molybdenum-107. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 65	Isobar A = 107
36	¹⁰¹Kr
37	¹⁰²Rb
38	¹⁰³Sr	¹⁰⁷Sr
39	¹⁰⁴Y	¹⁰⁷Y
40	¹⁰⁵Zr	¹⁰⁷Zr
41	¹⁰⁶Nb	¹⁰⁷Nb
42	¹⁰⁷Mo	¹⁰⁷Mo
43	¹⁰⁸Tc	¹⁰⁷Tc
44	¹⁰⁹Ru	¹⁰⁷Ru
45	¹¹⁰Rh	¹⁰⁷Rh
46	¹¹¹Pd	¹⁰⁷Pd
47	¹¹²Ag	¹⁰⁷Ag
48	¹¹³Cd	¹⁰⁷Cd
49	¹¹⁴In	¹⁰⁷In
50	¹¹⁵Sn	¹⁰⁷Sn
51	¹¹⁶Sb	¹⁰⁷Sb
52	¹¹⁷Te	¹⁰⁷Te
53	¹¹⁸I
54	¹¹⁹Xe
55	¹²⁰Cs
56	¹²¹Ba
57	¹²²La
58	¹²³Ce
59	¹²⁴Pr
60	¹²⁵Nd
61	¹²⁶Pm