Platinum-167

Properties and data of the isotope ¹⁶⁷Pt.

Contents

See also: List of individual Platinum isotopes (and general data sources).

General data

Name of the isotope:Platinum-167; Pt-167Symbol:¹⁶⁷Pt or 16778PtMass number A:167 (= number of nucleons)Atomic number Z:78 (= number of protons)Neutrons N:89Isotopic mass:166.99290(32) u (atomic weight of Platinum-167)Nuclide mass:166.9501153 u (calculated nuclear mass without electrons)Mass excess:-6.61361 MeVMass defect:1.38863002 u (per nucleus)Nuclear binding energy:1293.50053185 MeV (per nucleus)
7.74551217 MeV (average binding energy per nucleon)Separation energy:S_N = 9.95(43) MeV (first neutron)
S_P = 0.55(36) MeV (first proton)Half-life:0.7(2) msDecay constant λ:990.21025794278 s^-1Specific activity α:3.592280514629 × 10⁺²⁴ Bq g^-1
97088662557565 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:1996

Radioactive Decay

Half-life T_½ = 0.7(2) ms respectively 7 × 10^-4 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	¹⁶³Os	100 %	7.16(5) MeV

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 89) and isobaric (same nucleon number A = 167) with Platinum-167. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 89	Isobar A = 167
50	¹³⁹Sn
51	¹⁴⁰Sb
52	¹⁴¹Te
53	¹⁴²I
54	¹⁴³Xe
55	¹⁴⁴Cs
56	¹⁴⁵Ba
57	¹⁴⁶La
58	¹⁴⁷Ce
59	¹⁴⁸Pr
60	¹⁴⁹Nd
61	¹⁵⁰Pm
62	¹⁵¹Sm
63	¹⁵²Eu	¹⁶⁷Eu
64	¹⁵³Gd	¹⁶⁷Gd
65	¹⁵⁴Tb	¹⁶⁷Tb
66	¹⁵⁵Dy	¹⁶⁷Dy
67	¹⁵⁶Ho	¹⁶⁷Ho
68	¹⁵⁷Er	¹⁶⁷Er
69	¹⁵⁸Tm	¹⁶⁷Tm
70	¹⁵⁹Yb	¹⁶⁷Yb
71	¹⁶⁰Lu	¹⁶⁷Lu
72	¹⁶¹Hf	¹⁶⁷Hf
73	¹⁶²Ta	¹⁶⁷Ta
74	¹⁶³W	¹⁶⁷W
75	¹⁶⁴Re	¹⁶⁷Re
76	¹⁶⁵Os	¹⁶⁷Os
77	¹⁶⁶Ir	¹⁶⁷Ir
78	¹⁶⁷Pt	¹⁶⁷Pt