Which of these elements is not a "rare earth metal"?

Despite their name, rare-earth elements are – with the exception of the radioactive promethium – relatively plentiful in Earth's crust, with cerium being the 25th most abundant element at 68 parts per million, or as abundant as copper. They find application in the most dynamically developing areas of high technology industry such as: aviation, space flights, production of mobile phones (smartphones).