Плутониум

94
Pu
Група
Нема одговор
Периода
7
блок
f
Protons
Electrons
Neutrons
94
94
150
Општи Својства
Атомски број
94
Атомска тежина
[244]
Mass Number
244
Category
Актиноид
Color
Silver
Radioactive
Да
Named after the planet Pluto
Кристална структура
Simple Monoclinic
History
Plutonium was first produced in 1940 by Glenn T. Seaborg, Edwin M. McMillan, Joseph W. Kennedy and Arthur Wahl.

Plutonium-238 was produced by deuteron bombardment of uranium-238 in the 60-inch cyclotron at the University of California, Berkeley.

The Berkeley team made neptunium-238 which decayed to plutonium-238.
Electrons per shell
2, 8, 18, 32, 24, 8, 2
Електронска конфигурација
[Rn] 5f6 7s2
Pu
The atomic bomb dropped on Nagasaki, Japan in 1945 had a plutonium core
Физички Својства
Фаза
Solid
Густина
19,816 g/cm3
Точка на топење
912,55 K | 639,4 °C | 1182,92 °F
Точка на вриење
3501,15 K | 3228 °C | 5842,4 °F
Топлина на топење
Нема одговор
Топлина на испарување
325 kJ/mol
Specific Heat Capacity
-
Abundance in Earth's crust
Нема одговор
Abundance in Universe
Нема одговор
A
Кредити на слика: Wikimedia Commons (Los Alamos National Laboratory)
A ring of weapons-grade 99.96% pure electrorefined plutonium, enough for one bomb core
CAS Number
7440-07-5
PubChem CID Number
23940
Атомски Својства
Атомски полупречник
159 pm
Ковалентен полупречник
187 pm
Електронегативност
1,28 (Полингова скала)
Ionization Potential
6,0262 eV
Atomic Volume
12,32 cm3/mol
Thermal Conductivity
0,0674 W/cm·K
Oxidation States
3, 4, 5, 6, 7, 8
Applications
The isotope plutonium-239 is a key fissile component in nuclear weapons, due to its ease of fission and availability.

Plutonium-238 has also been used successfully to power artificial heart pacemakers, to reduce the risk of repeated surgery.

Plutonium-238 mixed with beryllium is used to generate neutrons for research purposes.
Plutonium is harmful due to its radioactivity
Isotopes
Stable Isotopes
-
Unstable Isotopes
228Pu, 229Pu, 230Pu, 231Pu, 232Pu, 233Pu, 234Pu, 235Pu, 236Pu, 237Pu, 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, 243Pu, 244Pu, 245Pu, 246Pu, 247Pu