Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
The melting point of lanthanum is approximately 920°C (1688°F).
The lanthanum is paramagnetic from 6 K (−267 °C, or −449 °F) to its melting point at 920 °C, or 1,688 °F with a nearly temperature-independent magnetic susceptibility between 4 and 300 K (−269 and 27 °C, or −452 and 80 °F).
Lanthanum is a silvery-white metal that belongs to the rare earth elements group. It is relatively soft and has a relatively low melting point compared to other metals. This makes it relatively easy to melt, but also makes it less suitable for high-temperature applications where a higher melting point is required.
However, lanthanum has many other unique properties that make it valuable for various applications, including its ability to absorb and store hydrogen gas, its high reactivity with other elements, and its use as a catalyst in the chemical industry.
