Atomic NumberAtomic Number of Plutonium
Atomic Number of Plutonium is 94.
Chemical symbol for Plutonium is Pu. Number of protons in Plutonium is 94. Atomic weight of Plutonium is 244 u or g/mol. Melting point of Plutonium is 641 °C and its the boiling point is 3327 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Plutonium
Plutonium is one of the actinides discovered in the middle of the last century by a group of American scientists. It is a radioactive silvery and shiny metal, highly toxic and dangerous to living organisms. It was named after the planet Pluto, which used to be considered to be a part of the Solar System in those times. Plutonium can be obtained by irradiation of uranium in terms of nuclear reactions. Along with uranium, plutonium is used as the basic element for nuclear reaction initiation. This radioactive chemical element is used for making very powerful explosives and nuclear weapons.
Properties of Plutonium Element
| Atomic Number (Z) | 94 |
|---|---|
| Atomic Symbol | Pu |
| Group | |
| Period | 7 |
| Atomic Weight | 244 u |
| Density | 19.84 g/cm3 |
| Melting Point (K) | 912.5 K |
| Melting Point (℃) | 641 °C |
| Boiling Point (K) | 3501 K |
| Boiling Point (℃) | 3327 °C |
| Heat Capacity | |
| Abundance | ≤ 3×10−11 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Actinide |
| Electronegativity (Pauling) χ | 1.28 |
| Ionization Energy (eV) | 6.0262 |
| Atomic Radius | 175pm |
| Covalent Radius | no datapm |
| Valence Electrons | 2 |
| Year of Discovery | 1940 |
| Discoverer | Seaborg |