Definition

A type of atom that has an unstable nucleus and emits radiation, which can be produced naturally or in a laboratory.

Example

Scientists use radioisotopes in medical imaging to help diagnose diseases.

Conversation

Have you ever heard of a radioisotope?

Yeah, I think it's something to do with radioactive elements, right?

Exactly! They can be used in medicine for imaging and treatments.

That's pretty fascinating; I didn't know they had such important applications!

Synonyms & Antonyms

Root Explanation

Radioisotope → It is formed from "radio-" (from Latin "radius", meaning ray) and "isotope" (from Greek "isos", meaning equal, and "topos", meaning place). The term refers to an isotope that emits radiation, hence the combination of ray and equal place in the context of atomic structure.

Memory Tip

Think of 'ray' ('radio-') as a form of energy emitted from an atom that is in an 'equal place' ('isotope') in the periodic table, which helps you remember that a radioisotope is an atom that emits radiation.

Visually Confused Words