Words nearby radium
How to use radium in a sentence
We know now that radium, or at least radio-active substances, represent the philosopher's stone of the olden time.Education: How Old The New|James J. Walsh
Radium was discovered in 1898 by M. and Madame Curie and M. Bmont, while experimenting with the uranium mineral pitchblende.
It seems that an atom of radium does actually disintegrate, and by disintegrating give out energy.
"They are using radium repellent rays to keep us from approaching," he informed.The Jameson Satellite|Neil Ronald Jones
The cost of one pound of radium is variously estimated at from one to three millions of dollars.How to Succeed as an Inventor|Goodwin B. Smith
British Dictionary definitions for radium
- a highly radioactive luminescent white element of the alkaline earth group of metals. It occurs in pitchblende, carnotite, and other uranium ores, and is used in radiotherapy and in luminous paints. Symbol: Ra; atomic no: 88; half-life of most stable isotope, 226 Ra: 1620 years; valency: 2; relative density: 5; melting pt: 700°C; boiling pt: 1140°C
- (as modifier)radium needle