• 84

    Po

  • Metalloids

    Polonium

  • Group

    16

  • Period

    6

  • Block

    p

化学元素【钋】
  • Protons

    84

  • Electrons

    84

  • Neutrons

    126

波兰,居里夫人的家乡

General Properties

Atomic Number
84
Atomic Weight
[210]
Mass Number
210
Category
Metalloids
Color
Silver
Radioactive
Yes
Discovery year
1898
Crystal Structure
Simple Cubic

History

钋被居里夫妇在1898年的巴黎发现

他们在考察沥青铀矿的放射性是发现了钋

在放射环境下工作的危险性在他们的发现之前没有人有具体了解
Electrons per shell
2, 8, 18, 32, 18, 6
Electron Configuration
[Xe] 4f14 5d10 6s2 6p4
Po

Physical Properties

Phase
Solid
Density
9.196g/cm3
Melting Point
527.15 K | 254 °C | 489.2 °F
Boiling Point
1235.15 K | 962 °C | 1763.6 °F
Heat of Fusion
13 kJ/mol
Heat of Vaporization
100 kJ/mol
Specific Heat Capacity
-

Atomic Properties

Atomic Radius
168 pm
Covalent Radius
140 pm
Electronegativity
2.00 (鲍林标度)
Ionization Potential
8.417 eV
Atomic Volume
22.23 cm3/mol
Thermal Conductivity
0.2 W/cm·K
Oxidation States
-2, 2, 4, 6
Abundance in Earth's crust
Abundance in Universe
CAS Number
7440-08-6
PubChem CID Number

Applications

钋被用在消除摩擦过程中产生的静电,比如摩擦纸,金属线和金属片

钋可以和铍等金属制成合金用作中子源

它还可以用在消除照片上的灰尘的刷子中
钋可以用质子或中子轰击稳定存在的铋原子得到
Stable Isotopes
-
Unstable Isotopes

188Po, 189Po, 190Po, 191Po, 192Po, 193Po, 194Po, 195Po, 196Po, 197Po, 198Po, 199Po, 200Po, 201Po, 202Po, 203Po, 204Po, 205Po, 206Po, 207Po, 208Po, 209Po, 210Po, 211Po, 212Po, 213Po, 214Po, 215Po, 216Po, 217Po, 218Po, 219Po, 220Po