Dysprosium-162

Properties and data of the isotope ¹⁶²Dy.

Contents

General data

Name of the isotope:Dysprosium-162; Dy-162Symbol:¹⁶²Dy or 16266DyMass number A:162 (= number of nucleons)Atomic number Z:66 (= number of protons)Neutrons N:96Isotopic mass:161.92681(2) u (atomic weight of Dysprosium-162)Nuclide mass:161.8906068 u (calculated nuclear mass without electrons)Mass excess:-68.17605 MeVMass defect:1.421474048 u (per nucleus)Nuclear binding energy:1324.09454687 MeV (per nucleus)
8.17342313 MeV (average binding energy per nucleon)Separation energy:S_N = 8.19699(6) MeV (first neutron)
S_P = 8.0089(13) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)0+Charge radius:5.2074(172) femtometer fmYear of discovery:1934

Parent Nuclides

Direct parent isotopes are: ¹⁶²Ho, ¹⁶²Tb.

Occurrence

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

	Atomic Mass m_a	Quantity	Half-life	Spin
Dysprosium Isotopic mixture	162.500 u	100 %
Isotope ¹⁵⁶Dy	155.92428(2) u	0.056(3) %	stable	0+
Isotope ¹⁵⁸Dy	157.92442(2) u	0.095(3) %	stable	0+
Isotope ¹⁶⁰Dy	159.92520(2) u	2.329(18) %	stable	0+
Isotope ¹⁶¹Dy	160.92694(2) u	18.889(42) %	stable	5/2+
Isotope ¹⁶²Dy	161.92681(2) u	25.475(36) %	stable	0+
Isotope ¹⁶³Dy	162.92874(2) u	24.896(42) %	stable	5/2-
Isotope ¹⁶⁴Dy	163.92918(2) u	28.260(54) %	stable	0+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 96) and isobaric (same nucleon number A = 162) with Dysprosium-162. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 96	Isobar A = 162
55	¹⁵¹Cs
56	¹⁵²Ba
57	¹⁵³La
58	¹⁵⁴Ce
59	¹⁵⁵Pr
60	¹⁵⁶Nd	¹⁶²Nd
61	¹⁵⁷Pm	¹⁶²Pm
62	¹⁵⁸Sm	¹⁶²Sm
63	¹⁵⁹Eu	¹⁶²Eu
64	¹⁶⁰Gd	¹⁶²Gd
65	¹⁶¹Tb	¹⁶²Tb
66	¹⁶²Dy	¹⁶²Dy
67	¹⁶³Ho	¹⁶²Ho
68	¹⁶⁴Er	¹⁶²Er
69	¹⁶⁵Tm	¹⁶²Tm
70	¹⁶⁶Yb	¹⁶²Yb
71	¹⁶⁷Lu	¹⁶²Lu
72	¹⁶⁸Hf	¹⁶²Hf
73	¹⁶⁹Ta	¹⁶²Ta
74	¹⁷⁰W	¹⁶²W
75	¹⁷¹Re	¹⁶²Re
76	¹⁷²Os	¹⁶²Os
77	¹⁷³Ir
78	¹⁷⁴Pt
79	¹⁷⁵Au
80	¹⁷⁶Hg
81	¹⁷⁷Tl
82	¹⁷⁸Pb