See also: List of individual Ytterbium isotopes (and general data sources).
General data
Name of the isotope:Ytterbium-164; Yb-164Symbol:164Yb or 16470YbMass number A:164 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:94Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.3428571428571 (= neutron-proton ratio)Neutron excess (N-Z):24Isotopic mass:163.934495(16) u (atomic weight of Ytterbium-164)Nuclide mass:163.8960979 u (calculated nuclear mass without electrons)Mass excess:-61.01751 MeVMass defect:1.427759344 u (per nucleus)Nuclear binding energy:1329.94926238 MeV (per nucleus) 8.10944672 MeV (average binding energy per nucleon)Separation energy:SN = 9.790(21) MeV (first neutron) SP = 5.576(16) MeV (first proton)Half-life:75.8(17) minDecay constant λ:0.00015240703178539 s-1Specific activity α:5.598678900529 × 10+17 Bq g-1 15131564.596025 Ci g-1Spin and parity: (nuclear angular momentum)0+Charge radius:5.2307(60) femtometer fmYear of discovery:1960
Radioactive Decay
Half-life T½ = 75.8(17) min (minutes) respectively 4.548 × 103 seconds s.
The following table shows the atomic nuclei that are isotonic (same neutron number N = 94) and isobaric (same nucleon number A = 164) with Ytterbium-164. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
