See also: List of individual Platinum isotopes (and general data sources).
General data
Name of the isotope:Platinum-170; Pt-170Symbol:170Pt or 17078PtMass number A:170 (= number of nucleons)Atomic number Z:78 (= number of protons)Neutrons N:92Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.1794871794872 (= neutron-proton ratio)Neutron excess (N-Z):14Isotopic mass:169.982502(20) u (atomic weight of Platinum-170)Nuclide mass:169.9397173 u (calculated nuclear mass without electrons)Mass excess:-16.29928 MeVMass defect:1.425022768 u (per nucleus)Nuclear binding energy:1327.40015826 MeV (per nucleus) 7.80823623 MeV (average binding energy per nucleon)Separation energy:SN = 11.86(20) MeV (first neutron) SP = 1.49(3) MeV (first proton)Half-life:13.8(5) msDecay constant λ:50.228056562315 s-1Specific activity α:1.779479788569 × 10+23 Bq g-1 4809404833972.2 Ci g-1Spin and parity: (nuclear angular momentum)0+Year of discovery:1981
Radioactive Decay
Half-life T½ = 13.8(5) ms respectively 1.38 × 10-2 seconds s.
The following table shows the atomic nuclei that are isotonic (same neutron number N = 92) and isobaric (same nucleon number A = 170) with Platinum-170. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
