Plutonium-236

Properties and data of the isotope ²³⁶Pu.

Content

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

Literature

General data

Name of the isotope:Plutonium-236; Pu-236Symbol:²³⁶Pu or 23694PuMass number A:236 (= number of nucleons)Atomic number Z:94 (= number of protons)Neutrons N:142Isotopic mass:236.0460568(19) u (atomic weight of Plutonium-236)Nuclide mass:235.9944973 u (calculated nuclear mass without electrons)Mass excess:42.90163 MeVMass defect:1.91991428 u (per nucleus)Nuclear binding energy:1788.38863233 MeV (per nucleus)
7.57791793 MeV (average binding energy per nucleon)Separation energy:S_N = 7.352(21) MeV (first neutron)
S_P = 5.4045(18) MeV (first proton)Half-life:2.858(8) aDecay constant λ:7.690536357483 × 10^-9 s^-1Specific activity α:19624361539505 Bq g^-1
530.38814971635 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1949

Radioactive Decay

Half-life T_½ = 2.858(8) a respectively 9.0129888 × 10⁷ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	²³²U	ca. 100 %	5.86715(8) MeV
SZ	^div	trace

Parent Nuclides

Direct parent isotopes are: ²³⁶Am, ²³⁶Np, ²⁴⁰Cm.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 142) and isobaric (same nucleon number A = 236) with Plutonium-236. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 142	Isobar A = 236
84	²²⁶Po
85	²²⁷At
86	²²⁸Rn
87	²²⁹Fr
88	²³⁰Ra
89	²³¹Ac	²³⁶Ac
90	²³²Th	²³⁶Th
91	²³³Pa	²³⁶Pa
92	²³⁴U	²³⁶U
93	²³⁵Np	²³⁶Np
94	²³⁶Pu	²³⁶Pu
95	²³⁷Am	²³⁶Am
96	²³⁸Cm	²³⁶Cm
97	²³⁹Bk	²³⁶Bk
98	²⁴⁰Cf
99	²⁴¹Es
100	²⁴²Fm