Cerium-153

Properties and data of the isotope ¹⁵³Ce.

Content

General data

Name of the isotope:Cerium-153; Ce-153Symbol:¹⁵³Ce or 15358CeMass number A:153 (= number of nucleons)Atomic number Z:58 (= number of protons)Neutrons N:95Isotopic mass:152.94105(21) u (atomic weight of Cerium-153)Nuclide mass:152.9092346 u (calculated nuclear mass without electrons)Mass excess:-54.91157 MeVMass defect:1.335968876 u (per nucleus)Nuclear binding energy:1244.44699218 MeV (per nucleus)
8.13364047 MeV (average binding energy per nucleon)Separation energy:S_N = 4.00(28) MeV (first neutron)
S_P = 12.91(36) MeV (first proton)Half-life:865(25) msDecay constant λ:0.80132622030051 s^-1Specific activity α:3.174802219348 × 10⁺²¹ Bq g^-1
85805465387.808 Ci g^-1Spin and parity:
(nuclear angular momentum)(3/2-)Year of discovery:1994

Radioactive Decay

Half-life T_½ = 865(25) ms respectively 8.65 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁵³Pr	ca. 100 %	6.66(20) MeV
β^-, n		?	0.78(20) MeV

Parent Nuclides

Direct parent isotope is: ¹⁵³La.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 95) and isobaric (same nucleon number A = 153) with Cerium-153. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 95	Isobar A = 153
55	¹⁵⁰Cs
56	¹⁵¹Ba	¹⁵³Ba
57	¹⁵²La	¹⁵³La
58	¹⁵³Ce	¹⁵³Ce
59	¹⁵⁴Pr	¹⁵³Pr
60	¹⁵⁵Nd	¹⁵³Nd
61	¹⁵⁶Pm	¹⁵³Pm
62	¹⁵⁷Sm	¹⁵³Sm
63	¹⁵⁸Eu	¹⁵³Eu
64	¹⁵⁹Gd	¹⁵³Gd
65	¹⁶⁰Tb	¹⁵³Tb
66	¹⁶¹Dy	¹⁵³Dy
67	¹⁶²Ho	¹⁵³Ho
68	¹⁶³Er	¹⁵³Er
69	¹⁶⁴Tm	¹⁵³Tm
70	¹⁶⁵Yb	¹⁵³Yb
71	¹⁶⁶Lu	¹⁵³Lu
72	¹⁶⁷Hf	¹⁵³Hf
73	¹⁶⁸Ta
74	¹⁶⁹W
75	¹⁷⁰Re
76	¹⁷¹Os
77	¹⁷²Ir
78	¹⁷³Pt
79	¹⁷⁴Au
80	¹⁷⁵Hg
81	¹⁷⁶Tl