94
Pu
無法計量
週期
7
f
個質子
電子
個中子
94
94
150
一般屬性
原子序數
94
標準原子質量
[244]
品質編號
244
類別
錒系元素
顏色
銀色
放射性
Named after the planet Pluto
晶體結構
以基中心單核
歷史
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.
每個外殼的電子
2, 8, 18, 32, 24, 8, 2
電子排布
[Rn] 5f6 7s2
Pu
The atomic bomb dropped on Nagasaki, Japan in 1945 had a plutonium core
物理性質
物態
固體
密度
19.816 g/cm3
熔點
912.55 K | 639.4 °C | 1182.92 °F
沸點
3501.15 K | 3228 °C | 5842.4 °F
熔化熱
無法計量
汽化熱
325 kJ/mol
比熱容
-
地殼豐度
無法計量
宇宙豐度
無法計量
A
圖片來源: Wikimedia Commons (Los Alamos National Laboratory)
A ring of weapons-grade 99.96% pure electrorefined plutonium, enough for one bomb core
CAS 編號
7440-07-5
Pubchem CID 編號
23940
原子性質
原子半徑
159 pm
共價半徑
187 pm
電負性
1.28 (鲍林标度)
電離電位
6.0262 eV
原子體積
12.32 cm3/mol
熱導率
0.0674 W/cm·K
氧化態
3, 4, 5, 6, 7, 8
應用
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
同位素
穩定同位素
-
不穩定同位素
228Pu, 229Pu, 230Pu, 231Pu, 232Pu, 233Pu, 234Pu, 235Pu, 236Pu, 237Pu, 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, 243Pu, 244Pu, 245Pu, 246Pu, 247Pu