plutonium
From Wiktionary
[change] Pronunciation
Audio (US)help, file- Hyphenation: plu‧to‧ni‧um
[change] Noun
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Singular |
Plural |
- (uncountable) Plutonium is a man-made element of the periodic table, with atomic number 94 and symbol Pu.
- Along with neptunium, plutonium was the first man-made element to be created by bombarding uranium-238 cores with neutrons.
- (uncountable) Plutonium is also the radioactive metal made of plutonium atoms.
- Plutonium is a silvery and very dense metal, its toxicity makes it dangerous to manipulate.
| The Periodic Table | |||||||||||||||||||||||||||||||||||||||||
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| H | He | ||||||||||||||||||||||||||||||||||||||||
| Li | Be | B | C | N | O | F | Ne | ||||||||||||||||||||||||||||||||||
| Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||||||||||||||||||||||||||
| K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | ||||||||||||||||||||||||
| Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | ||||||||||||||||||||||||
| Cs | Ba | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | ||||||||||
| Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Uub | Uut | Uuq | Uup | Uuh | Uus | Uuo | ||||||||||
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