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Strontium-94

Properties and data of the isotope 94Sr.


Contents

See also: list of Strontium isotopes.

 

General data

Name of the isotope:Strontium-94; Sr-94Symbol:94Sr or 9438SrMass number A:94 (= number of nucleons)Atomic number Z:38 (= number of protons)Neutrons N:56Isotopic mass:93.9153556(18) u (atomic weight of Strontium-94)Nuclide mass:93.8945104 u (calculated nuclear mass without electrons)Mass excess:-78.84575 MeVMass defect:0.867230912 u (per nucleus)Nuclear binding energy:807.82039114 MeV (per nucleus)
8.59383395 MeV (average binding energy per nucleon)
Separation energy:SN = 6.831(8) MeV (first neutron)
SP = 13.515(8) MeV (first proton)
Half-life:75.3(2) sDecay constant λ:0.0092051418401055 s-1Specific activity α:5.96071621471 × 10+19 Bq g-1
1611004382.3543 Ci g-1
Spin and parity:
(nuclear angular momentum)
0+Charge radius:4.3191(91) femtometer fmYear of discovery:1959

 

Radioactive Decay

Half-life T½ = 75.3(2) s respectively 7.53 × 101 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
β-94Y100%3.506(6) MeV

 

Parent Nuclides

Direct parent isotope is: 94Rb.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 56) and isobaric (same nucleon number A = 94) with Strontium-94. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 56Isobar A = 94
3187Ga
3288Ge
3389As
3490Se94Se
3591Br94Br
3692Kr94Kr
3793Rb94Rb
3894Sr94Sr
3995Y94Y
4096Zr94Zr
4197Nb94Nb
4298Mo94Mo
4399Tc94Tc
44100Ru94Ru
45101Rh94Rh
46102Pd94Pd
47103Ag94Ag
48104Cd94Cd
49105In
50106Sn
51107Sb
52108Te
53109I
54110Xe

 

External data and identifiers

Adopted Levels, Gammas:NuDat 94Sr

 


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Last update: 2020-10-14


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