Uranium-220

Properties and data of the isotope ²²⁰U.

Contents

Uranium-220 is an as yet undiscovered or artificially produced radioactive isotope of the chemical element uranium. The atomic nucleus of the hypothetical nuclide would consist of the element-specific 92 protons and 128 neutrons.

See also: List of individual Uranium isotopes (and general data sources).

General data

Name of the isotope:Uranium-220; U-220Symbol:²²⁰U or 22092UMass number A:220 (= number of nucleons)Atomic number Z:92 (= number of protons)Neutrons N:128Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.3913043478261 (= neutron-proton ratio)Neutron excess (N-Z):36Isotopic mass:220 u (atomic weight of Uranium-220)Nuclide mass:219.9495373 u (calculated nuclear mass without electrons)Mass excess:0 MeVMass defect:1.829012192 u (per nucleus)Nuclear binding energy:1703.71388277 MeV (per nucleus)
7.74415401 MeV (average binding energy per nucleon)Half-life:- ungelistet -Spin and parity:
(nuclear angular momentum)Year of discovery:-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 128) and isobaric (same nucleon number A = 220) with Uranium-220. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 128	Isobar A = 220
77	²⁰⁵Ir
78	²⁰⁶Pt
79	²⁰⁷Au
80	²⁰⁸Hg
81	²⁰⁹Tl
82	²¹⁰Pb	²²⁰Pb
83	²¹¹Bi	²²⁰Bi
84	²¹²Po	²²⁰Po
85	²¹³At	²²⁰At
86	²¹⁴Rn	²²⁰Rn
87	²¹⁵Fr	²²⁰Fr
88	²¹⁶Ra	²²⁰Ra
89	²¹⁷Ac	²²⁰Ac
90	²¹⁸Th	²²⁰Th
91	²¹⁹Pa	²²⁰Pa
92	²²⁰U	²²⁰U
93	²²¹Np	²²⁰Np
95	²²³Am