Neodymium-143

Properties and data of the isotope ¹⁴³Nd.

Content

General data

Name of the isotope:Neodymium-143; Nd-143Symbol:¹⁴³Nd or 14360NdMass number A:143 (= number of nucleons)Atomic number Z:60 (= number of protons)Neutrons N:83Isotopic mass:142.90982(2) u (atomic weight of Neodymium-143)Nuclide mass:142.8769077 u (calculated nuclear mass without electrons)Mass excess:-84.00213 MeVMass defect:1.278869948 u (per nucleus)Nuclear binding energy:1191.25968334 MeV (per nucleus)
8.3304873 MeV (average binding energy per nucleon)Separation energy:S_N = 6.12357(7) MeV (first neutron)
S_P = 7.5037(14) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)7/2-Magnetic dipole moment:μ(μ_N) = - 1.065Charge radius:4.9254(26) femtometer fmYear of discovery:1933

Parent Nuclides

Direct parent isotopes are: ¹⁴³Pm, ¹⁴³Pr, ¹⁴⁷Sm.

Occurrence

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

	Atomic Mass m_a	Quantity	Half-life	Spin
Neodymium Isotopic mixture	144.242 u	100 %
Isotope ¹⁴²Nd	141.90773(2) u	27.153(40) %	stable	0+
Isotope ¹⁴³Nd	142.90982(2) u	12.173(26) %	stable	7/2-
Isotope ¹⁴⁴Nd	143.9100928(13) u	23.798(19) %	2.29(16) × 10¹⁵ a	0+
Isotope ¹⁴⁵Nd	144.91258(2) u	8.293(12) %	stable	7/2-
Isotope ¹⁴⁶Nd	145.91312(2) u	17.189(32) %	stable	0+
Isotope ¹⁴⁸Nd	147.91690(2) u	5.756(21) %	stable	0+
Isotope ¹⁵⁰Nd	149.92090(2) u	5.638(28) %	6.7(7) × 10¹⁸ a	0+

NMR data

Nuclear magnetic properties of the NMR active Nuclide ¹⁴³Nd

Isotope:¹⁴³Nd-NMRQuantity:12.173(26) %Spin:7/2-Nuclearmagnetic moment
μ/μ_N:- 1.065Gyromagnetic ratio γ:1.474 · 10⁷ rad T^-1 s^-1Nuclear g-factor:g_l = -0.30428571428571Quadrupole moment Q:- 0.63(6) barn (100 fm²)Resonance frequency:v₀ = 2.319 at 1 TRelative Sensitivity:0.00339 (H₀ = const.)
1.1440 (v₀ = const.)
[related to ¹H = 1.000]

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 83) and isobaric (same nucleon number A = 143) with Neodymium-143. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 83	Isobar A = 143
46	¹²⁹Pd
47	¹³⁰Ag
48	¹³¹Cd
49	¹³²In
50	¹³³Sn
51	¹³⁴Sb
52	¹³⁵Te	¹⁴³Te
53	¹³⁶I	¹⁴³I
54	¹³⁷Xe	¹⁴³Xe
55	¹³⁸Cs	¹⁴³Cs
56	¹³⁹Ba	¹⁴³Ba
57	¹⁴⁰La	¹⁴³La
58	¹⁴¹Ce	¹⁴³Ce
59	¹⁴²Pr	¹⁴³Pr
60	¹⁴³Nd	¹⁴³Nd
61	¹⁴⁴Pm	¹⁴³Pm
62	¹⁴⁵Sm	¹⁴³Sm
63	¹⁴⁶Eu	¹⁴³Eu
64	¹⁴⁷Gd	¹⁴³Gd
65	¹⁴⁸Tb	¹⁴³Tb
66	¹⁴⁹Dy	¹⁴³Dy
67	¹⁵⁰Ho	¹⁴³Ho
68	¹⁵¹Er	¹⁴³Er
69	¹⁵²Tm
70	¹⁵³Yb
71	¹⁵⁴Lu
72	¹⁵⁵Hf
73	¹⁵⁶Ta
74	¹⁵⁷W