Radium
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 Marie and Pierre Curie experimenting with radium, a drawing by André Castaigne |
Radium ( ) is a chemical element with symbol Ra and atomic number 88. Radium is an almost pure-white alkaline earth metal, but it readily oxidizes on exposure to air, becoming black in color. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1601 years and decays into radon gas. Because of such instability, radium is luminescent, glowing a faint blue.
- See also: Wikipedia
- Related: Decay chain, Radium Girls
| WebElements.com – Radium WebElements.com – Radium www.webelements.com/webelements/elements/text/Ra/index.html - Web |
| Lateral Science – Radium Discovery Lateral Science – Radium Discovery www.lateralscience.co.uk/radium/RaDisc.html - Web |
| Photos of Radium Water Bath in Oklahoma Photos of Radium Water Bath in Oklahoma www.markwshead.com/stuffHappens/radium.html - Web |
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| NLM Hazardous Substances Databank – Radium, R... NLM Hazardous Substances Databank – Radium, Radioactive toxnet.nlm.nih.gov/.../r?dbs+hsdb:@term+@na+@rel+radium,+radioactive - Web |
| Reproduction of a 1942 comic book ad selling a "Ra... Reproduction of a 1942 comic book ad selling a "Radiumscope" to children www.lileks.com/institute/funny/07/40.html - Web |
| Annotated bibliography for radium from the Alsos D... Annotated bibliography for radium from the Alsos Digital Library for Nuclear Issues alsos.wlu.edu/qsearch.aspx?browse=science/Radium - Web |
| The Poisoner Next Door – Japan Today, 10/20/2... The Poisoner Next Door – Japan Today, 10/20/2001 www.japantoday.com/.../the-poisoner-next-door - Web |
