Palladium-105

Properties and data of the isotope ¹⁰⁵Pd.

Contents

General data

Name of the isotope:Palladium-105; Pd-105Symbol:¹⁰⁵Pd or 10546PdMass number A:105 (= number of nucleons)Atomic number Z:46 (= number of protons)Neutrons N:59Isotopic mass:104.905080(8) u (atomic weight of Palladium-105)Nuclide mass:104.8798466 u (calculated nuclear mass without electrons)Mass excess:-88.41741 MeVMass defect:0.96610151600001 u (per nucleus)Nuclear binding energy:899.91776554 MeV (per nucleus)
8.57064539 MeV (average binding energy per nucleon)Separation energy:S_N = 7.0941(7) MeV (first neutron)
S_P = 8.7475(26) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)5/2+Magnetic dipole moment:μ(μ_N) = - 0.642(3)Charge radius:4.5150(30) femtometer fmYear of discovery:1935

Parent Nuclides

Direct parent isotopes are: ¹⁰⁵Ag, ¹⁰⁵Rh.

Occurrence

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

	Atomic Mass m_a	Quantity	Half-life	Spin
Palladium Isotopic mixture	106.42 u	100 %
Isotope ¹⁰²Pd	101.90560(2) u	1.02(1) %	stable	0+
Isotope ¹⁰⁴Pd	103.904031(9) u	11.14(8) %	stable	0+
Isotope ¹⁰⁵Pd	104.905080(8) u	22.33(8) %	stable	5/2+
Isotope ¹⁰⁶Pd	105.903480(8) u	27.33(3) %	stable	0+
Isotope ¹⁰⁸Pd	107.903892(8) u	26.46(9) %	stable	0+
Isotope ¹¹⁰Pd	109.905172(5) u	11.72(9) %	stable	0+

NMR data

Nuclear magnetic properties of the NMR active Nuclide ¹⁰⁵Pd

Isotope:¹⁰⁵Pd-NMRQuantity:22.33(8) %Spin:5/2+Nuclearmagnetic moment
μ/μ_N:- 0.642(3)Gyromagnetic ratio γ:- 1.2305 · 10⁷ rad T^-1 s^-1Nuclear g-factor:g_l = -0.2568Quadrupole moment Q:+ 0.660(11) barn (100 fm²)Resonance frequency:v₀ = 1.957 at 1 TRelative Sensitivity:0.00113 (H₀ = const.)
0.5364 (v₀ = const.)
[related to ¹H = 1.000]

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 59) and isobaric (same nucleon number A = 105) with Palladium-105. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 59	Isobar A = 105
33	⁹²As
34	⁹³Se
35	⁹⁴Br
36	⁹⁵Kr
37	⁹⁶Rb
38	⁹⁷Sr	¹⁰⁵Sr
39	⁹⁸Y	¹⁰⁵Y
40	⁹⁹Zr	¹⁰⁵Zr
41	¹⁰⁰Nb	¹⁰⁵Nb
42	¹⁰¹Mo	¹⁰⁵Mo
43	¹⁰²Tc	¹⁰⁵Tc
44	¹⁰³Ru	¹⁰⁵Ru
45	¹⁰⁴Rh	¹⁰⁵Rh
46	¹⁰⁵Pd	¹⁰⁵Pd
47	¹⁰⁶Ag	¹⁰⁵Ag
48	¹⁰⁷Cd	¹⁰⁵Cd
49	¹⁰⁸In	¹⁰⁵In
50	¹⁰⁹Sn	¹⁰⁵Sn
51	¹¹⁰Sb	¹⁰⁵Sb
52	¹¹¹Te	¹⁰⁵Te
53	¹¹²I
54	¹¹³Xe
55	¹¹⁴Cs
56	¹¹⁵Ba
57	¹¹⁶La