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Molybdenum-100

Properties and data of the isotope 100Mo.


Content

See also: list of Molybdenum isotopes.

 

General data

Name of the isotope:Molybdenum-100; Mo-100Symbol:100Mo or 10042MoMass number A:100 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:58Isotopic mass:99.907472(7) u (atomic weight of Molybdenum-100)Nuclide mass:99.8844327 u (calculated nuclear mass without electrons)Mass excess:-86.18928 MeVMass defect:0.92374447200001 u (per nucleus)Nuclear binding energy:860.4624332 MeV (per nucleus)
8.60462433 MeV (average binding energy per nucleon)
Separation energy:SN = 8.2942(4) MeV (first neutron)
SP = 11.147(12) MeV (first proton)
Half-life:7.3(4) × 1018 aDecay constant λ:3.010897658861 × 10-27 s-1Specific activity α:1.831520183486 × 10-5 Bq g-1
4.950054549963 × 10-16 Ci g-1
Spin and parity:
(nuclear angular momentum)
0+Charge radius:4.4468(25) femtometer fmYear of discovery:1930

 

Radioactive Decay

Half-life T½ = 7.3(4) × 1018 a respectively 2.302128 × 1026 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
2 β-100Ru100 %

 

Parent Nuclides

Direct parent isotopes are: 100Tc, 100Nb.

 

Occurrence

Comparison of the natural Molybdenum isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

 

Atomic Mass maQuantityHalf-lifeSpin
Molybdenum
Isotopic mixture
95.95 u100 %
Isotope 92Mo91.906808(5) u14.649(106) %stable0+
Isotope 94Mo93.905085(3) u9.187(33) %stable0+
Isotope 95Mo94.905839(3) u15.873(30) %stable5/2+
Isotope 96Mo95.904676(3) u16.673(8) %stable0+
Isotope 97Mo96.906018(3) u9.582(15) %stable5/2+
Isotope 98Mo97.905405(3) u24.292(80) %stable0+
Isotope 100Mo99.907472(7) u9.744(65) %7.3(4) × 1018 a0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 58) and isobaric (same nucleon number A = 100) with Molybdenum-100. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 58Isobar A = 100
3290Ge
3391As
3492Se
3593Br
3694Kr100Kr
3795Rb100Rb
3896Sr100Sr
3997Y100Y
4098Zr100Zr
4199Nb100Nb
42100Mo100Mo
43101Tc100Tc
44102Ru100Ru
45103Rh100Rh
46104Pd100Pd
47105Ag100Ag
48106Cd100Cd
49107In100In
50108Sn100Sn
51109Sb
52110Te
53111I
54112Xe
55113Cs
56114Ba

 

External data and identifiers

Adopted Levels, Gammas:NuDat 100Mo

 


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Last update: 2020-10-15


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