CAS Number | 7439-91-0 |
---|---|
PubChem CID | 23926 |
Atomic Radius | 187 |
Atomic Volume | 22.5 |
Atomic Weight | 138.905 |
Block | f |
Boiling Point | 3,464 |
Bulk Modulus | |
Category | Lanthanides |
Crystal Structure | Simple Hexagonal |
Color | Silver |
Covalent Radius | 207 |
Density | 6.145 |
Electrical Resistivity | |
Electron Configuration | [Xe] 5d1 6s2 |
Electrons per shell | 2, 8, 18, 18, 9, 2 |
Electronegativity | 1.1 |
Electrons | 57 |
Group | na |
Heat of Fusion | 6.2 |
Heat of Vaporization | 400 |
Ionization Potential | 5.577 |
Magnetic Ordering | |
Magnetic Susceptibility | |
Mass | 138.905 |
Mass Number | 57 |
Melting Point | 920 |
Name | Lanthanum |
Neutrons | 82 |
Atomic Number | 139 |
Oxidation States | 2, 3 |
Period | 6 |
Phase | Solid |
Poisson Ratio | |
Protons | 57 |
Shear Modulus | |
Specific Heat Capacity | 0.195 |
Symbol | La |
Thermal Conductivity | 0.135 |
Van der Waals radius | |
Young's Modulus | |
Abundance | |
Abundance in Earth's crust | 0.0034% |
Abundance in Universe | 2×10-7% |
138.90547(7)
138La 139La
117La 118La 119La 120La 121La 122La 123La 124La 125La 126La 127La 128La 129La 130La 131La 132La 133La 134La 135La 136La 137La 140La 141La 142La 143La 144La 145La 146La 147La 148La 149La 150La 151La 152La 153La 154La 155La