No radioactivity
There are 17 rare earth elements, among which promethium is a radioactive element, but does not exist in nature and is an artificial element; the other is scandium, Sc45 is not radioactive, while scandium is Other isotopes are radioactive, but scandium is very scarce in nature, and scandium is not used to make luminescent powder. The other 15 rare earth elements are non-radioactive and are commonly used in our daily lives, such as agricultural fertilizer additives, feed additives, and energy-saving lighting. , color TVs, mobile phones, electric vehicles, computers, medical equipment and so on.
In northern rare earth mines, thorium is often associated with the element, and thorium is radioactive. Because of this, people have a misunderstanding that rare earths are radioactive. In fact, this is wrong.