Zirconium-94
Properties and data of the isotope 94Zr.
See also: list of Zirconium isotopes.
General data
Name of the isotope:Zirconium-94; Zr-94Symbol:94Zr or 9440ZrMass number A:94 (= number of nucleons)Atomic number Z:40 (= number of protons)Neutrons N:54Isotopic mass:93.90631(2) u (atomic weight of Zirconium-94)Nuclide mass:93.8843678 u (calculated nuclear mass without electrons)Mass excess:-87.27167 MeVMass defect:0.87459674399999 u (per nucleus)Nuclear binding energy:814.68161946 MeV (per nucleus)
8.66682574 MeV (average binding energy per nucleon)Separation energy:SN = 8.2186(5) MeV (first neutron)
SP = 10.331(10) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)0+Charge radius:4.3320(13) femtometer fm
Parent Nuclides
Direct parent isotope is: 94Y.
Occurrence
Comparison of the natural Zirconium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| Atomic Mass ma | Quantity | Half-life | Spin |
---|
Zirconium Isotopic mixture | 91.224 u | 100 % | | |
Isotope 90Zr | 89.90470(2) u | 51.45(4) % | stable | 0+ |
Isotope 91Zr | 90.90564(2) u | 11.22(5) % | stable | 5/2+ |
Isotope 92Zr | 91.90503(2) u | 17.15(3) % | stable | 0+ |
Isotope 94Zr | 93.90631(2) u | 17.38(4) % | stable | 0+ |
Isotope 96Zr | 95.90827(2) u | 2.80(2) % | 2.0(4) × 1019 a | 0+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 54) and isobaric (same nucleon number A = 94) with Zirconium-94. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 54 | Isobar A = 94 |
30 | 84Zn | |
31 | 85Ga | |
32 | 86Ge | |
33 | 87As | |
34 | 88Se | 94Se |
35 | 89Br | 94Br |
36 | 90Kr | 94Kr |
37 | 91Rb | 94Rb |
38 | 92Sr | 94Sr |
39 | 93Y | 94Y |
40 | 94Zr | 94Zr |
41 | 95Nb | 94Nb |
42 | 96Mo | 94Mo |
43 | 97Tc | 94Tc |
44 | 98Ru | 94Ru |
45 | 99Rh | 94Rh |
46 | 100Pd | 94Pd |
47 | 101Ag | 94Ag |
48 | 102Cd | 94Cd |
49 | 103In | |
50 | 104Sn | |
51 | 105Sb | |
52 | 106Te | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/zirconium-94
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