Lutetium-152

Properties and data of the isotope ¹⁵²Lu.

Contents

General data

Name of the isotope:Lutetium-152; Lu-152Symbol:¹⁵²Lu or 15271LuMass number A:152 (= number of nucleons)Atomic number Z:71 (= number of protons)Neutrons N:81Isotopic mass:151.96412(21) u (atomic weight of Lutetium-152)Nuclide mass:151.9251745 u (calculated nuclear mass without electrons)Mass excess:-33.422 MeVMass defect:1.293315468 u (per nucleus)Nuclear binding energy:1204.71559855 MeV (per nucleus)
7.92576052 MeV (average binding energy per nucleon)Separation energy:S_N = 11.38(36) MeV (first neutron)Half-life:0.7(1) sDecay constant λ:0.99021025794278 s^-1Specific activity α:3.949129572374 × 10⁺²¹ Bq g^-1
106733231685.8 Ci g^-1Spin and parity:
(nuclear angular momentum)(4-.5-.6-)Year of discovery:1987

Radioactive Decay

Half-life T_½ = 0.7(1) s respectively 7 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	¹⁵²Yb		12.85(25) MeV
β⁺, p	¹⁵¹Tm	15(7) %

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 81) and isobaric (same nucleon number A = 152) with Lutetium-152. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 81	Isobar A = 152
45	¹²⁶Rh
46	¹²⁷Pd
47	¹²⁸Ag
48	¹²⁹Cd
49	¹³⁰In
50	¹³¹Sn
51	¹³²Sb
52	¹³³Te
53	¹³⁴I
54	¹³⁵Xe
55	¹³⁶Cs
56	¹³⁷Ba	¹⁵²Ba
57	¹³⁸La	¹⁵²La
58	¹³⁹Ce	¹⁵²Ce
59	¹⁴⁰Pr	¹⁵²Pr
60	¹⁴¹Nd	¹⁵²Nd
61	¹⁴²Pm	¹⁵²Pm
62	¹⁴³Sm	¹⁵²Sm
63	¹⁴⁴Eu	¹⁵²Eu
64	¹⁴⁵Gd	¹⁵²Gd
65	¹⁴⁶Tb	¹⁵²Tb
66	¹⁴⁷Dy	¹⁵²Dy
67	¹⁴⁸Ho	¹⁵²Ho
68	¹⁴⁹Er	¹⁵²Er
69	¹⁵⁰Tm	¹⁵²Tm
70	¹⁵¹Yb	¹⁵²Yb
71	¹⁵²Lu	¹⁵²Lu
72	¹⁵³Hf