Xenon-148

Properties and data of the isotope ¹⁴⁸Xe.

Content

General data

Name of the isotope:Xenon-148; Xe-148Symbol:¹⁴⁸Xe or 14854XeMass number A:148 (= number of nucleons)Atomic number Z:54 (= number of protons)Neutrons N:94Isotopic mass:147.95856(32) u (atomic weight of Xenon-148)Nuclide mass:147.9289386 u (calculated nuclear mass without electrons)Mass excess:-38.60111 MeVMass defect:1.278493832 u (per nucleus)Nuclear binding energy:1190.90933355 MeV (per nucleus)
8.04668469 MeV (average binding energy per nucleon)Separation energy:S_N = 4.31(36) MeV (first neutron)Half-life:4 μsDecay constant λ:1732867.9513999 s^-1Specific activity α:7.099030540816 × 10⁺²⁷ Bq g^-1
1.918656902923 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:2010

Radioactive Decay

Half-life T_½ = 4 μs respectively 4 × 10^-7 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁴⁸Cs	?	8.31(30) MeV
β^-, n	¹⁴⁷Cs	?	5.25(30) MeV

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 94) and isobaric (same nucleon number A = 148) with Xenon-148. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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