RADIUM B Definition & Meaning

radium B

noun

Chemistry.

an isotope of lead, formed by decay of radium A, that gives rise to radium C, which is an isotope of bismuth, from which radium D, radium E, and radium F, or polonium 210, are derived.

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�y��vlog History and Origins

Origin of radium B¹

First recorded in 1900–05

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Example Sentences

Examples have not been reviewed.

In fact, to be brief, it is not till we come to Radium B that ß-rays of a relatively high penetrative quality are reached; and it is not till we come to Radium C that highly penetrative y-rays are obtained.

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