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  • curprev 17:0117:01, 10 January 2024PDPrins talk contribs 69,924 bytes +11 Radium was used in clocks etc from the 1910s to the 1970s, not just around 1950. See https://en.m.wikipedia.org/wiki/Radium_dial Tags: Mobile edit Mobile web edit

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  • curprev 00:4400:44, 9 October 2022Stuart hc talk contribs 64,873 bytes +35 Add "with a half-life of 1600 years" following the mention of radium 226, to the sentence describing all the isotopes of radium. This makes the sentence a better summary of radium isotopes by showing the reader how stable the longest lived isotope is.

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