Ytterbium-165
Properties and data of the isotope 165Yb.
See also: List of individual Ytterbium isotopes (and general data sources).
General data
Name of the isotope:Ytterbium-165; Yb-165Symbol:165Yb or 16570YbMass number A:165 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:95Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.3571428571429 (= neutron-proton ratio)Neutron excess (N-Z):25Isotopic mass:164.935270(28) u (atomic weight of Ytterbium-165)Nuclide mass:164.8968729 u (calculated nuclear mass without electrons)Mass excess:-60.29561 MeVMass defect:1.43564926 u (per nucleus)Nuclear binding energy:1337.29867179 MeV (per nucleus)
8.10484044 MeV (average binding energy per nucleon)Separation energy:SN = 7.35(3) MeV (first neutron)
SP = 5.68(4) MeV (first proton)Half-life:9.9(3) minDecay constant λ:0.0011669144453871 s-1Specific activity α:4.284953147326 × 10+18 Bq g-1
115809544.52235 Ci g-1Spin and parity:
(nuclear angular momentum)5/2-Magnetic dipole moment:μ(μN) = + 0.478(8)Quadrupole moment Q:+ 2.48(4) barn (100 fm2)Nuclear g-factor:gl = 0.1912Charge radius:5.2399(57) femtometer fmYear of discovery:1964
Radioactive Decay
Half-life T½ = 9.9(3) min (minutes) respectively 5.94 × 102 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| EC/β+ | 165Tm | 100 % | 2.634(27) MeV | |
Parent Nuclides
Direct parent isotope is: 165Lu.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 95) and isobaric (same nucleon number A = 165) with Ytterbium-165. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 95 | Isobar A = 165 |
|---|
| 55 | 150Cs | |
| 56 | 151Ba | |
| 57 | 152La | |
| 58 | 153Ce | |
| 59 | 154Pr | |
| 60 | 155Nd | |
| 61 | 156Pm | |
| 62 | 157Sm | 165Sm |
| 63 | 158Eu | 165Eu |
| 64 | 159Gd | 165Gd |
| 65 | 160Tb | 165Tb |
| 66 | 161Dy | 165Dy |
| 67 | 162Ho | 165Ho |
| 68 | 163Er | 165Er |
| 69 | 164Tm | 165Tm |
| 70 | 165Yb | 165Yb |
| 71 | 166Lu | 165Lu |
| 72 | 167Hf | 165Hf |
| 73 | 168Ta | 165Ta |
| 74 | 169W | 165W |
| 75 | 170Re | 165Re |
| 76 | 171Os | 165Os |
| 77 | 172Ir | 165Ir |
| 78 | 173Pt | 165Pt |
| 79 | 174Au | |
| 80 | 175Hg | |
| 81 | 176Tl | |
External data and identifiers
Last update: 2020-10-11
Perma link: https://www.chemlin.org/isotope/ytterbium-165
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