An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( LockA locked padlock
) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
Radium-226 series decay scheme from Rutherford's 1906 book, Radioactive Transformations
Decay schemes from uranium, actinium and thorium series as given in Frederick Soddy's 1911 book, The Chemistry of the Radio-Elements
The uranium series as given in Rutherford's 1936 book, The Newer Alchemy