radium periodic table element |
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| navigate by keyword : radium science education laboratory element periodic scientific icon vector table symbol atom atomic mass weight number lab mendeleev physics school chemistry chemical material structure electron molecule molecular name technology radioactive metallic alkaline earth bone cancer therapy universe substance period quantum blue thin research label |
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| Radium, Ra, periodic table element with name, symbol, atomic number and weight. Alkaline earth metal with radioactive properties, formerly used in medical therapy and as a component of certain types of paint. |
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