Xenon-114

Properties and data of the isotope ¹¹⁴Xe.

Content

General data

Name of the isotope:Xenon-114; Xe-114Symbol:¹¹⁴Xe or 11454XeMass number A:114 (= number of nucleons)Atomic number Z:54 (= number of protons)Neutrons N:60Isotopic mass:113.927980(12) u (atomic weight of Xenon-114)Nuclide mass:113.8983586 u (calculated nuclear mass without electrons)Mass excess:-67.0862 MeVMass defect:1.014466688 u (per nucleus)Nuclear binding energy:944.96963307 MeV (per nucleus)
8.28920731 MeV (average binding energy per nucleon)Separation energy:S_N = 12.954(13) MeV (first neutron)
S_P = 3.255(14) MeV (first proton)Half-life:10.0(4) sDecay constant λ:0.069314718055995 s^-1Specific activity α:3.694008812389 × 10⁺²⁰ Bq g^-1
9983807601.0524 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1977

Radioactive Decay

Half-life T_½ = 10.0(4) s respectively 1.00 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹¹⁴I	100 %	5.71(15) MeV

Parent Nuclides

Direct parent isotope is: ¹¹⁴Cs.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 60) and isobaric (same nucleon number A = 114) with Xenon-114. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 60	Isobar A = 114
34	⁹⁴Se
35	⁹⁵Br
36	⁹⁶Kr
37	⁹⁷Rb
38	⁹⁸Sr
39	⁹⁹Y
40	¹⁰⁰Zr
41	¹⁰¹Nb	¹¹⁴Nb
42	¹⁰²Mo	¹¹⁴Mo
43	¹⁰³Tc	¹¹⁴Tc
44	¹⁰⁴Ru	¹¹⁴Ru
45	¹⁰⁵Rh	¹¹⁴Rh
46	¹⁰⁶Pd	¹¹⁴Pd
47	¹⁰⁷Ag	¹¹⁴Ag
48	¹⁰⁸Cd	¹¹⁴Cd
49	¹⁰⁹In	¹¹⁴In
50	¹¹⁰Sn	¹¹⁴Sn
51	¹¹¹Sb	¹¹⁴Sb
52	¹¹²Te	¹¹⁴Te
53	¹¹³I	¹¹⁴I
54	¹¹⁴Xe	¹¹⁴Xe
55	¹¹⁵Cs	¹¹⁴Cs
56	¹¹⁶Ba	¹¹⁴Ba
57	¹¹⁷La