Platinum-170

Properties and data of the isotope ¹⁷⁰Pt.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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:92Isotopic 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:S_N = 11.86(20) MeV (first neutron)
S_P = 1.49(3) MeV (first proton)Half-life:13.8(5) msDecay constant λ:50.228056562315 s^-1Specific activity α:1.789825039876 × 10⁺²³ Bq g^-1
4837364972639.2 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1981

Radioactive Decay

Half-life T_½ = 13.8(5) ms respectively 1.38 × 10^-2 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	¹⁶⁶Os	98(2) %	6.707(3) MeV
EC/β⁺	¹⁷⁰Ir	?	7.06(9) MeV

Parent Nuclides

Direct parent isotopes are: ¹⁷¹Au, ¹⁷⁴Hg.

Isotones and Isobars

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.

Z	Isotone N = 92	Isobar A = 170
53	¹⁴⁵I
54	¹⁴⁶Xe
55	¹⁴⁷Cs
56	¹⁴⁸Ba
57	¹⁴⁹La
58	¹⁵⁰Ce
59	¹⁵¹Pr
60	¹⁵²Nd
61	¹⁵³Pm
62	¹⁵⁴Sm
63	¹⁵⁵Eu
64	¹⁵⁶Gd	¹⁷⁰Gd
65	¹⁵⁷Tb	¹⁷⁰Tb
66	¹⁵⁸Dy	¹⁷⁰Dy
67	¹⁵⁹Ho	¹⁷⁰Ho
68	¹⁶⁰Er	¹⁷⁰Er
69	¹⁶¹Tm	¹⁷⁰Tm
70	¹⁶²Yb	¹⁷⁰Yb
71	¹⁶³Lu	¹⁷⁰Lu
72	¹⁶⁴Hf	¹⁷⁰Hf
73	¹⁶⁵Ta	¹⁷⁰Ta
74	¹⁶⁶W	¹⁷⁰W
75	¹⁶⁷Re	¹⁷⁰Re
76	¹⁶⁸Os	¹⁷⁰Os
77	¹⁶⁹Ir	¹⁷⁰Ir
78	¹⁷⁰Pt	¹⁷⁰Pt
79	¹⁷¹Au	¹⁷⁰Au
80	¹⁷²Hg