Protactinium By Göhring, Otto & Fajans, Kasimir (1913) | |||||||
| NO ATOM 91 |
NAMA Protactinium |
SIMBOL Pa |
BOBOT ATOM 231.03588 |
BENTUK Solid |
TIPE Rare Earth Metal |
GRUP 102 |
GRUP LAMA Actinides |
| PERIOD 7 |
ELEKTRON CONFIG [Rn] 5f2 6d1 7s2 |
GROUND LEVEL 4K11/2 |
ENERGI IONISASI 5.89 |
TITIK LELEH 1572 |
TITIK DIDIH 4000 |
STRUKTUR KRISTAL §tetra |
Atomic Radius (display) (m) 163 |
| Metallic Radius (pm) 163 |
Covalent radius (pm) #N/A |
Atomic Radius (calculated) (pm) #N/A |
Van der Waals Radius, (pm) #N/A |
Electro-negativity (Pauling) 1.5 |
Density (g/cm3) 15.37 |
Electron Affinity (kJ/mol) #N/A |
Thermal Conductivity, W/(m K) 47 |
| Electrical Resistivity (Ωm) 0.00000018 |
CAS NO CAS7440-13-3 |
OXIDASI STATE +4,5 |
PENEMU Göhring, Otto & Fajans, Kasimir |
TAHUN 1913 |
|||