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Cerium-119

Properties and data of the isotope 119Ce.


Contents

See also: list of Cerium isotopes.

 

General data

Name of the isotope:Cerium-119; Ce-119Symbol:119Ce or 11958CeMass number A:119 (= number of nucleons)Atomic number Z:58 (= number of protons)Neutrons N:61Isotopic mass:118.95276(64) u (atomic weight of Cerium-119)Nuclide mass:118.9209446 u (calculated nuclear mass without electrons)Mass excess:-44.00378 MeVMass defect:1.029651732 u (per nucleus)Nuclear binding energy:959.11441045 MeV (per nucleus)
8.05978496 MeV (average binding energy per nucleon)
Half-life:200 msDecay constant λ:3.4657359027997 s-1Specific activity α:1.768741507627 × 10+22 Bq g-1
478038245304.62 Ci g-1
Spin and parity:
(nuclear angular momentum)
5/2+

 

Radioactive Decay

Half-life T½ = 200 ms respectively 2 × 10-1 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
β+119La

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 61) and isobaric (same nucleon number A = 119) with Cerium-119. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 61Isobar A = 119
3495Se
3596Br
3697Kr
3798Rb
3899Sr
39100Y
40101Zr
41102Nb
42103Mo
43104Tc119Tc
44105Ru119Ru
45106Rh119Rh
46107Pd119Pd
47108Ag119Ag
48109Cd119Cd
49110In119In
50111Sn119Sn
51112Sb119Sb
52113Te119Te
53114I119I
54115Xe119Xe
55116Cs119Cs
56117Ba119Ba
57118La119La
58119Ce119Ce

 

External data and identifiers

Adopted Levels, Gammas:NuDat 119Ce

 


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Last update: 2020-10-19


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