About   |   More   |   Search
ChemLin Logo

Neodymium-144

Properties and data of the isotope 144Nd.


Contents

See also: list of Neodymium isotopes.

 

General data

Name of the isotope:Neodymium-144; Nd-144Symbol:144Nd or 14460NdMass number A:144 (= number of nucleons)Atomic number Z:60 (= number of protons)Neutrons N:84Isotopic mass:143.9100928(13) u (atomic weight of Neodymium-144)Nuclide mass:143.8771805 u (calculated nuclear mass without electrons)Mass excess:-83.74802 MeVMass defect:1.287262064 u (per nucleus)Nuclear binding energy:1199.07688904 MeV (per nucleus)
8.32692284 MeV (average binding energy per nucleon)
Separation energy:SN = 7.81704(5) MeV (first neutron)
SP = 7.9688(14) MeV (first proton)
Half-life:2.29(16) × 1015 aDecay constant λ:9.598058039165 × 10-24 s-1Specific activity α:0.040420180065526 Bq g-1
1.092437299068 × 10-12 Ci g-1
Spin and parity:
(nuclear angular momentum)
0+Charge radius:4.9421(27) femtometer fmYear of discovery:1924

 

Radioactive Decay

Half-life T½ = 2.29(16) × 1015 a respectively 7.2217440 × 1022 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
α140Ce100 %1.9013(15) MeV

 

Parent Nuclides

Direct parent isotopes are: 144Pm, 144Pr, 148Sm.

 

Occurrence

Comparison of the natural Neodymium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

 

Atomic Mass maQuantityHalf-lifeSpin
Neodymium
Isotopic mixture
144.242 u100 %
Isotope 142Nd141.90773(2) u27.153(40) %stable0+
Isotope 143Nd142.90982(2) u12.173(26) %stable7/2-
Isotope 144Nd143.9100928(13) u23.798(19) %2.29(16) × 1015 a0+
Isotope 145Nd144.91258(2) u8.293(12) %stable7/2-
Isotope 146Nd145.91312(2) u17.189(32) %stable0+
Isotope 148Nd147.91690(2) u5.756(21) %stable0+
Isotope 150Nd149.92090(2) u5.638(28) %6.7(7) × 1018 a0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 84) and isobaric (same nucleon number A = 144) with Neodymium-144. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 84Isobar A = 144
47131Ag
48132Cd
49133In
50134Sn
51135Sb
52136Te
53137I144I
54138Xe144Xe
55139Cs144Cs
56140Ba144Ba
57141La144La
58142Ce144Ce
59143Pr144Pr
60144Nd144Nd
61145Pm144Pm
62146Sm144Sm
63147Eu144Eu
64148Gd144Gd
65149Tb144Tb
66150Dy144Dy
67151Ho144Ho
68152Er144Er
69153Tm144Tm
70154Yb
71155Lu
72156Hf
73157Ta
74158W
75159Re
76160Os

 

External data and identifiers

Adopted Levels, Gammas:NuDat 144Nd

 


More Chemistry

isotopes

Social Media

Facebook

LinkedIn

Twitter


Last update: 2023-10-16


© 1996 - 2024 ChemLin