PERIODIC TABLE
Protactinium
Atomic No. 91
Pa
Protactinium
About Protactinium
As Protactinium is a radioactive element without any stable isotopes, Lorad Chemical does not manufacture any compounds that incorporate this element.
Properties
- Atomic Number
- 91
- Atomic Symbol
- Pa
- Atomic Mass
- 231.0359
- CAS No.
- 7440-13-3
- Density
- 15.37 g/cm³
- Series
- actinoid
- Melting Point
- 1,572°C
- Boiling Point
- 4,000°C
- Thermal Conductivity
- 0.47 W/cm °C
- Heat of Fusion
- 15 kJ/mol
- Heat of Vaporization
- 470 kJ/mol
- Electronegativity
- 1.5 pauling
- Crystal Structure
- Tetragonal
- Electrical Conductivity
- 5.6×106 S/m
Protactinium Products
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