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(At:Astatine)

 

Symbol 

At

Name

Astatine

Atomic Number 

85

Atomic Weight

209.987

Boiling Point(°C)

337

Melting Point(°C)

302

Density 

 

Heat Vapor

 

Heat Fusion

 

Electrical Conductivity

 

Thermal Conductivity 

 

Specific Heat Capacity

 

Electron Shell 

2,8,18,32,18,7

Orbital

6p5

 

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