promethium

Definition

Promethium is a rare chemical element with the symbol Pm and atomic number 61. It is a radioactive element, which means that it decays over time and emits radiation. Promethium is not found in nature, but it can be created in laboratories.

Promethium is used in some light bulbs, smoke detectors, and medical devices. It is also used in research to study the effects of radiation on living things.

How can the word be used?

Promethium is used in lasers and magnets.

Different forms of the word

Noun: a radioactive chemical element with the symbol Pm and atomic number 61.

Adjective: relating to promethium.

Etymology

The word "promethium" is derived from the name of the Greek god Prometheus, who stole fire from Zeus and gave it to humans.

The first recorded use of the word "promethium" was in 1945.

Question

What is promethium used for?