Chemistry, asked by prithvi1980, 1 year ago

what is the proper definition of francium?

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Answered by Jith5121

francium in British. (ˈfrænsɪəm ) an unstable radioactive element of the alkali-metal group, occurring in minute amounts in uranium ores. Symbol: Fr; atomic no: 87; half-life of most stable isotope, 223Fr: 22 minutes; valency: 1; melting pt: 27°C; boiling pt: 677°C.

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