Structure via PubChem · Public domain (PubChem)
鈽-240
Sign in to saveAlso known as Pu-240, 240Pu, Plutonium 240
Plutonium-240 (' 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.
In the Vinony graph
Within Vinony's link graph, 鈽-240 is referenced by 101 other articles, and connects out to radioactive decay, decay chain and isotope of plutonium.
It sits within the topics Fertile materials, Isotope content page and Isotopes of plutonium.
Its subject is documented across 14 Wikipedia language editions.
Key facts
- Isotope.symbol
- Pu
- Isotope.image
- Plutonium-240.svg
- Isotope.mass_number
- 240
- Isotope.mass
- 240.053812
- Isotope.num_neutrons
- 146
- Isotope.num_protons
- 94
- Isotope.abundance
- Trace
- Isotope.decay_mode1
- Alpha decay
- Isotope.decay_energy1
- 5.256
- Isotope.decay_product
- Uranium-236
- Isotope.decay_symbol
- U
- Isotope.decay_mass
- 236
via Wikipedia infobox
Chemical data
- Formula
- Pu
- Molecular weight
- 240.05381 g/mol
- IUPAC name
- plutonium-240
- SMILES
- [240Pu]
- InChIKey
- OYEHPCDNVJXUIW-AHCXROLUSA-N
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Wikidata facts
- Instance of
- isotope of plutonium
- Subclass of
- plutonium
- Has part
- plutonium
- Mass
- 240.053811812
Show 10 more facts
- atomic number
- 94
- neutron number
- 146
- half-life
- 6561.0
- spin quantum number
- 0.0
- parity quantum number
- 1
- mass excess
- 50125.38
- binding energy
- 1813450.08
- Commons category
- Plutonium-240
- canonical SMILES
- [240Pu]
- chemical formula
- Pu
Sources (8)
via Wikidata · CC0
Connections
radioactive decay
Entity
decay chain
Entity
isotope of plutonium
Entity
fizzle
Entity
World War II
Concept
International Standard Book Number
Entity
nuclear weapon
Entity
plutonium
Entity
neutron
Entity
atomic number
Entity
nuclear fission
Entity
International Atomic Energy Agency
Entity
digital object identifier
Entity
International Standard Serial Number
Entity
atomic mass
Entity
nuclear reactor
Entity
Manhattan Project
Entity
half-life
Entity
electronvolt
Entity
mass number
Entity