What are the basic properties of Lanthanum?
Lanthanum (symbol: La) is a lanthanide with atomic number 57. Its atomic mass is 138.91 u, and it belongs to period 6 and group 3.
Lanthanum (La) Properties and Facts
Element 57 - Lanthanide
What is the electron configuration of Lanthanum?
The electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 5d¹ 6s²
What are the physical properties of Lanthanum?
Melting point: 1193.0 K
Boiling point: 3737.0 K
Density: 6.15 g/cm³
What are the known isotopes of Lanthanum?
- La-138: 0.09% abundance
- La-139: 99.91% abundance
What is the biological role and occurrence of Lanthanum?
Biological role: No known biological role
Natural occurrence: Found in rare earth minerals