plutonium

Fissile actinide metal

Plutonium is a radioactive metallic element, atomic number 94, used primarily in nuclear weapons and as fuel for nuclear reactors.

It does not occur naturally in significant amounts and is produced in reactors from uranium.

Plutonium is extremely toxic and remains hazardous for thousands of years.

Named after the planet Pluto, following the pattern of uranium (Uranus) and neptunium (Neptune).

radioactivity

decay

Gradual organic breakdown

isotopes · transuranic · actinides · neutron · contamination · ionizing · radionuclide · gamma · beta · dosimeter

weapons

warhead

Munition's explosive section

fissile · bomb · missile · ICBM · detonator · proliferation · arsenal · deterrent · megaton · thermonuclear

hazard

toxic

Capable of causing harm

dangerous · hazardous · ingestion · inhalation · bioaccumulation · cleanup · disposal · storage · safety · exposure

history

Manhattan Project

Clandestine atomic weapons program

Trinity · Nagasaki · arms race · nonproliferation · IAEA · nuclear age · discovery · synthesis · classified · secrecy

reactor

fuel

Energy source material

thorium · pellet · rod · core · reprocessing · coolant · power generation · electricity · transmutation · blanket

Categories
Opposites
nuclear material type

plutoniumuranium

Element ninety-two

uranium-235 · thorium · depleted uranium

elemental danger/stability

plutoniumhelium

Lightest noble gas

neon · oxygen · silicon · hydrogen · noble gases

Phrases
Family

plutonic

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Concrete · Negative · Rated G