CAS Number | 7440-13-3 |
---|---|
PubChem CID | na |
Atomic Radius | 163 |
Atomic Volume | 15 |
Atomic Weight | 231.036 |
Block | f |
Boiling Point | 4,027 |
Bulk Modulus | |
Category | Actinides |
Crystal Structure | Centered Tetragonal |
Color | Silver |
Covalent Radius | 200 |
Density | 15.37 |
Electrical Resistivity | |
Electron Configuration | [Rn] 5f2 6d1 7s2 |
Electrons per shell | 2, 8, 18, 32, 20, 9, 2 |
Electronegativity | 1.5 |
Electrons | 91 |
Group | na |
Heat of Fusion | 15 |
Heat of Vaporization | 470 |
Ionization Potential | 5.89 |
Magnetic Ordering | |
Magnetic Susceptibility | |
Mass | 231.036 |
Mass Number | 91 |
Melting Point | 1,568 |
Name | Protactinium |
Neutrons | 140 |
Atomic Number | 231 |
Oxidation States | 3, 4, 5 |
Period | 7 |
Phase | Solid |
Poisson Ratio | |
Protons | 91 |
Shear Modulus | |
Specific Heat Capacity | - |
Symbol | Pa |
Thermal Conductivity | 0.47 |
Van der Waals radius | |
Young's Modulus | |
Abundance | |
Abundance in Earth's crust | 9.9×10-13% |
Abundance in Universe | na |
231.03588(2)
231Pa
212Pa 213Pa 214Pa 215Pa 216Pa 217Pa 218Pa 219Pa 220Pa 221Pa 222Pa 223Pa 224Pa 225Pa 226Pa 227Pa 228Pa 229Pa 230Pa 232Pa 233Pa 234Pa 235Pa 236Pa 237Pa 238Pa 239Pa 240Pa