Skip to main content
An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Concept information

Preferred term

isotopes

Type

  • Chemical

Definition

  • Information Different forms of a single element that have the same number of protons but different numbers of neutrons in their nuclei. Some radioactive isotopes are unstable and shed nuclear particles over time until they become stable. For instance, unstable isotopes of uranium break down to become lead.

Broader concept

In other languages

URI

https://lod.nal.usda.gov/nalt/267

Download this concept:

RDF/XML TURTLE JSON-LD Created 1/19/06, last modified 9/3/19