Ytterbium-151
Properties and data of the isotope 151Yb.
See also: list of Ytterbium isotopes.
General data
Name of the isotope:Ytterbium-151; Yb-151Symbol:151Yb or 15170YbMass number A:151 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:81Isotopic mass:150.95540(32) u (atomic weight of Ytterbium-151)Nuclide mass:150.9170029 u (calculated nuclear mass without electrons)Mass excess:-41.54463 MeVMass defect:1.294210436 u (per nucleus)Nuclear binding energy:1205.54925587 MeV (per nucleus)
7.98376991 MeV (average binding energy per nucleon)Separation energy:SN = 10.97(42) MeV (first neutron)
SP = 2.34(36) MeV (first proton)Half-life:1.6(1) sDecay constant λ:0.43321698784997 s-1Specific activity α:1.739262482 × 10+21 Bq g-1
47007094121.622 Ci g-1Spin and parity:
(nuclear angular momentum)(1/2+)Year of discovery:1985
Radioactive Decay
Half-life T½ = 1.6(1) s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
EC/β+ | 151Tm | < 100 % | 9.23(30) MeV | |
EC, p | 150Er | > 0 % | | |
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|
151m1Yb | +x keV | 1.6(1) s | (11/2-) |
151m2Yb | +y kev | 2.6(7) μs | |
151m3Yb | +z keV | 20(1) μs | (27/2-) |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 81) and isobaric (same nucleon number A = 151) with Ytterbium-151. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 81 | Isobar A = 151 |
45 | 126Rh | |
46 | 127Pd | |
47 | 128Ag | |
48 | 129Cd | |
49 | 130In | |
50 | 131Sn | |
51 | 132Sb | |
52 | 133Te | |
53 | 134I | |
54 | 135Xe | |
55 | 136Cs | 151Cs |
56 | 137Ba | 151Ba |
57 | 138La | 151La |
58 | 139Ce | 151Ce |
59 | 140Pr | 151Pr |
60 | 141Nd | 151Nd |
61 | 142Pm | 151Pm |
62 | 143Sm | 151Sm |
63 | 144Eu | 151Eu |
64 | 145Gd | 151Gd |
65 | 146Tb | 151Tb |
66 | 147Dy | 151Dy |
67 | 148Ho | 151Ho |
68 | 149Er | 151Er |
69 | 150Tm | 151Tm |
70 | 151Yb | 151Yb |
71 | 152Lu | 151Lu |
72 | 153Hf | |
External data and identifiers
Last update: 2020-10-11
Perma link: https://www.chemlin.org/isotope/ytterbium-151
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