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Plutonium-240

Plutonium-240 (240Pu or Pu-240) is an isotope of plutonium formed when plutonium-239 captures a neutron without undergoing fission. The detection of its spontaneous fission led to its discovery in 1944 at Los Alamos and had important consequences for the Manhattan Project.

Standards, Nuclear weapons & Nuclear properties

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Key facts & relationships

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Alpha decay
5.256
Decay mode
Decay energy (MeV)
Decay products
236U
Half-life (t1/2)
6561(7) years
Isotope mass
240.053812 Da
Names
plutonium-240

Topics to explore

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Overview

Nuclear properties

Nuclear weapons

Advanced semantic analysis

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Map overview Semantic statistics

Plutonium-240

Nodes35
Edges34
Triples10
Avg. degree1.94
Density0.057143
Components1

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Plutonium-240

Top relations

Alpha decay · 1
Plutonium-240 → 5.256
Decay mode · 1
Plutonium-240 → Decay energy (MeV)
Decay products · 1
Plutonium-240 → 236U
Half-life (t1/2) · 1
Plutonium-240 → 6561(7) years
Isotope mass · 1
Plutonium-240 → 240.053812 Da
Names · 1
Plutonium-240 → plutonium-240
Natural abundance · 1
Plutonium-240 → Trace
Neutrons (N) · 1
Plutonium-240 → 146
Protons .mw-parser-output .nobold{font-weight:normal}(Z) · 1
Plutonium-240 → 94
Symbol · 1
Plutonium-240 → 240Pu

Important terminology Word statistics

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Important terminology

fission 240pu plutonium neutron isotopes nuclear spontaneous isotope decay 240 239pu weapons pu use core mass 236u fuel even cause

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Plutonium-240Alpha decay5.2561.00infobox
Plutonium-240Decay modeDecay energy (MeV)1.00infobox
Plutonium-240Decay products236U1.00infobox
Plutonium-240Half-life (t1/2)6561(7) years1.00infobox
Plutonium-240Isotope mass240.053812 Da1.00infobox
Plutonium-240Namesplutonium-2401.00infobox
Plutonium-240Natural abundanceTrace1.00infobox
Plutonium-240Neutrons (N)1461.00infobox
Plutonium-240Protons .mw-parser-output .nobold{font-weight:normal}(Z)941.00infobox
Plutonium-240Symbol240Pu1.00infobox

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