Plutonium


 * Name :** Plutonium
 * Symbol :** Pu


 * Found by:** Enrico Fermi


 * Atomic Number:** 94


 * Atomic Mass:** (244.0) AMU


 * Melting Point:** 639.5 °C (912.65 K, 1183.1 °F)


 * Boiling Point:** 3235.0 °C (3508.15 K, 5855.0 °F)


 * Number of Protons/Electrons:** 94


 * Half-life****:** Approximately 80 million years


 * Number of Neutrons:** 150
 * Crystal Structure:** Monoclinic


 * Density at 293 K:** 19.84 g/cm3
 * Color:** silvery gray


 * Uses:** Plutonium is used for nuclear reactors and nuclear weapons

Nuclear Fission: Nuclear Fission

Plutonium is a radioactive, and is used in nuclear devices. It is found in nuclear reactors, because when you split an atom of Uranium 238 you get Plutonium 239. Plutonium can also be found in nature, albeit in very small amounts, because it has a half life of 80 million years.


 * Edited by Patrick Gladhart-Hayes**
 * Plutonium** is a [|transuranic] [|radioactive] [|chemical element] with the [|symbol] Pu and [|atomic number] 94. It is an [|actinide] [|metal] of silvery-gray appearance that [|tarnishes] when exposed to air, and forms a dull coating when [|oxidized]. The element normally exhibits six [|allotropes] and four [|oxidation states]. It reacts with [|carbon], [|halogens], [|nitrogen], [|silicon] and [|hydrogen]. When exposed to moist air, it forms [|oxides] and [|hydrides] that expand the sample up to 70% in volume, which in turn flake off as a powder that can [|spontaneously ignite]. It is [|radioactive] and can accumulate in the [|bones]. These properties make the handling of plutonium dangerous.

The grade of Plutonium is determined by the amount of Plutonium-240 that is mixed in with the other isotopes. Weapons Grade Plutonium contains less than 7% Pu-240. Fuel-grade Plutonium contains 7%-19% Pu-240. Power Grade Plutonium contains 19%+ of Pu-240. Supergrade Plutonium(4%- Pu-240) is used in submarines and boats.

Plutonium has a very low Critical Mass. When Plutonium reaches Critical Mass, it emits lethal amounts of Radiation and Gamma Rays.
 * Edited by Max Cura**

Plutonium is a transuranic radioactive chemical element it is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states. Edited by Coyote Jones

Edited by Joey Brundan