Ytterbium-162

Properties and data of the isotope ¹⁶²Yb.

Contents

General data

Name of the isotope:Ytterbium-162; Yb-162Symbol:¹⁶²Yb or 16270YbMass number A:162 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:92Isotopic mass:161.935774(16) u (atomic weight of Ytterbium-162)Nuclide mass:161.8973769 u (calculated nuclear mass without electrons)Mass excess:-59.82613 MeVMass defect:1.409150512 u (per nucleus)Nuclear binding energy:1312.61524702 MeV (per nucleus)
8.10256325 MeV (average binding energy per nucleon)Separation energy:S_N = 10.058(21) MeV (first neutron)
S_P = 5.22(3) MeV (first proton)Half-life:18.87(19) minDecay constant λ:0.00061221266610135 s^-1Specific activity α:2.28995708788 × 10⁺¹⁸ Bq g^-1
61890732.105081 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:5.2054(67) femtometer fmYear of discovery:1963

Radioactive Decay

Half-life T_½ = 18.87(19) min (minutes) respectively 1.1322 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹⁶²Tm	100 %	1.65(3) MeV

Parent Nuclides

Direct parent isotope is: ¹⁶²Lu.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 92) and isobaric (same nucleon number A = 162) with Ytterbium-162. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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