Berkelium-235

Properties and data of the isotope ²³⁵Bk.

Content

General data

Name of the isotope:Berkelium-235; Bk-235Symbol:²³⁵Bk or 23597BkMass number A:235 (= number of nucleons)Atomic number Z:97 (= number of protons)Neutrons N:138Mass defect:236.954786512 u (per nucleus)Nuclear binding energy:220721.96190721 MeV (per nucleus)
939.24239109 MeV (average binding energy per nucleon)Half-life:- ungelistet -Spin and parity:
(nuclear angular momentum)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 138) and isobaric (same nucleon number A = 235) with Berkelium-235. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 138	Isobar A = 235
82	²²⁰Pb
83	²²¹Bi
84	²²²Po
85	²²³At
86	²²⁴Rn
87	²²⁵Fr
88	²²⁶Ra
89	²²⁷Ac	²³⁵Ac
90	²²⁸Th	²³⁵Th
91	²²⁹Pa	²³⁵Pa
92	²³⁰U	²³⁵U
93	²³¹Np	²³⁵Np
94	²³²Pu	²³⁵Pu
95	²³³Am	²³⁵Am
96	²³⁴Cm	²³⁵Cm
97	²³⁵Bk	²³⁵Bk