Ytterbium-164

Properties and data of the isotope ¹⁶⁴Yb.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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:S_N = 9.790(21) MeV (first neutron)
S_P = 5.576(16) MeV (first proton)Half-life:75.8(17) minDecay constant λ:0.00015240703178539 s^-1Specific activity α:5.630776769671 × 10⁺¹⁷ Bq g^-1
15218315.593707 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:5.2307(60) femtometer fmYear of discovery:1960

Radioactive Decay

Half-life T_½ = 75.8(17) min (minutes) respectively 4.548 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC	¹⁶⁴Tm	100 %	0.887(29) MeV

Parent Nuclides

Direct parent isotope is: ¹⁶⁴Lu.

Isotones and Isobars

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.

Z	Isotone N = 94	Isobar A = 164
54	¹⁴⁸Xe
55	¹⁴⁹Cs
56	¹⁵⁰Ba
57	¹⁵¹La
58	¹⁵²Ce
59	¹⁵³Pr
60	¹⁵⁴Nd
61	¹⁵⁵Pm
62	¹⁵⁶Sm	¹⁶⁴Sm
63	¹⁵⁷Eu	¹⁶⁴Eu
64	¹⁵⁸Gd	¹⁶⁴Gd
65	¹⁵⁹Tb	¹⁶⁴Tb
66	¹⁶⁰Dy	¹⁶⁴Dy
67	¹⁶¹Ho	¹⁶⁴Ho
68	¹⁶²Er	¹⁶⁴Er
69	¹⁶³Tm	¹⁶⁴Tm
70	¹⁶⁴Yb	¹⁶⁴Yb
71	¹⁶⁵Lu	¹⁶⁴Lu
72	¹⁶⁶Hf	¹⁶⁴Hf
73	¹⁶⁷Ta	¹⁶⁴Ta
74	¹⁶⁸W	¹⁶⁴W
75	¹⁶⁹Re	¹⁶⁴Re
76	¹⁷⁰Os	¹⁶⁴Os
77	¹⁷¹Ir	¹⁶⁴Ir
78	¹⁷²Pt
79	¹⁷³Au
80	¹⁷⁴Hg