Electron Configuration
[Rn] 7s
2
5f
2
6d
1
Protactinium means "first ray"
Melting Point:
- -
o
C
Boiling Point:
- -
o
C
Heat of Vaporization:
2081.93 J/g
Heat of Fusion:
67.09 J/g
Specific Heat Capacity:
- - J/g
.
C
o
or - - cal/g
.
C
o
Density:
15.4 g/cm
3
