In the lanthanide series, each element that comes after the one next to it starting from the left has one more electron in the outer shell. This rule applies to the actinide series too.
The rare earths are silver, silvery-white, or gray metals. The metals have high electrical conductivity, which means they respond to electricity.
The rare earths share many common properties, and it’s difficult to separate them from each other if they combine.
Rare earth metals are generally used for electronics and making electronic devices.
Boiling and melting points
Rare Metals has an inconsistent rate of increasing and decreasing boiling and melting points. The boiling point has a pattern of increasing and decreasing through out the graph, and the melting points seems to decrease and increase through out the graph.
Location on the periodic table
The elements were located in different places (out of the table) because if they were inside the periodic table, wouldn’t have enough space, and the elements would interrupt other groups and periods.
The rare earth metals can be found on the earth’s crust, combined with some minerals, such as igneous rocks.