radioactive series: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Changed “atomic weight of thallium” to “atomic number of thallium.” Changed the half-life of neptunium-237 from “2,000,000 years” to “2,144,000 years.” | Jun 03, 2021 | ||
| Add new Web site: Massachusetts Institute of Technology - Radioactive Decay Series. | Apr 05, 2016 | ||
| Add new Web site: How Stuff Works - Science - Radioactivity. | Dec 30, 2010 | ||
| Add new Web site: Chemical Education at University of Wisconsin - Radioactive Series. | Dec 30, 2010 | ||
| Add new Web site: Raymond Walters College - Nuclear Decay and Radioactive Series. | Dec 30, 2010 | ||
| Illustrations of the uranium series, the neptunium series, the thorium series, and the actinium series added. | Mar 22, 2010 | ||
| Article added to new online database. | Jul 20, 1998 |
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