Neodymium-145

Properties and data of the isotope ¹⁴⁵Nd.

Contents

General data

Name of the isotope:Neodymium-145; Nd-145Symbol:¹⁴⁵Nd or 14560NdMass number A:145 (= number of nucleons)Atomic number Z:60 (= number of protons)Neutrons N:85Isotopic mass:144.91258(2) u (atomic weight of Neodymium-145)Nuclide mass:144.8796677 u (calculated nuclear mass without electrons)Mass excess:-81.43121 MeVMass defect:1.29343978 u (per nucleus)Nuclear binding energy:1204.83139443 MeV (per nucleus)
8.30918203 MeV (average binding energy per nucleon)Separation energy:S_N = 5.75531(23) MeV (first neutron)
S_P = 7.9704(24) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)7/2-Magnetic dipole moment:μ(μ_N) = - 0.656Charge radius:4.9535(28) femtometer fmYear of discovery:1933

Parent Nuclides

Direct parent isotopes are: ¹⁴⁵Pm, ¹⁴⁵Pr, ¹⁴⁹Sm.

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 ¹⁴⁵Nd

Isotope:¹⁴⁵Nd-NMRQuantity:8.293(12) %Spin:7/2-Nuclearmagnetic moment
μ/μ_N:- 0.656Gyromagnetic ratio γ:0.913 · 10⁷ rad T^-1 s^-1Nuclear g-factor:g_l = -0.18742857142857Quadrupole moment Q:-0.330(30) barn (100 fm²)Line width parameter (factor):l = 148.16 fm⁴Resonance frequency:v₀ = 1.429 at 1 TRelative Sensitivity:0.00079 (H₀ = const.)
0.7047 (v₀ = const.)
[related to ¹H = 1.000]

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 85) and isobaric (same nucleon number A = 145) with Neodymium-145. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 85	Isobar A = 145
47	¹³²Ag
48	¹³³Cd
49	¹³⁴In
50	¹³⁵Sn
51	¹³⁶Sb
52	¹³⁷Te
53	¹³⁸I	¹⁴⁵I
54	¹³⁹Xe	¹⁴⁵Xe
55	¹⁴⁰Cs	¹⁴⁵Cs
56	¹⁴¹Ba	¹⁴⁵Ba
57	¹⁴²La	¹⁴⁵La
58	¹⁴³Ce	¹⁴⁵Ce
59	¹⁴⁴Pr	¹⁴⁵Pr
60	¹⁴⁵Nd	¹⁴⁵Nd
61	¹⁴⁶Pm	¹⁴⁵Pm
62	¹⁴⁷Sm	¹⁴⁵Sm
63	¹⁴⁸Eu	¹⁴⁵Eu
64	¹⁴⁹Gd	¹⁴⁵Gd
65	¹⁵⁰Tb	¹⁴⁵Tb
66	¹⁵¹Dy	¹⁴⁵Dy
67	¹⁵²Ho	¹⁴⁵Ho
68	¹⁵³Er	¹⁴⁵Er
69	¹⁵⁴Tm	¹⁴⁵Tm
70	¹⁵⁵Yb
71	¹⁵⁶Lu
72	¹⁵⁷Hf
73	¹⁵⁸Ta
74	¹⁵⁹W
75	¹⁶⁰Re
76	¹⁶¹Os