Sentence Examples


  • Some part, however, seems to be derived from Thorium, And H.
  • With Three Hours' Exposure He Found The Thorium Emanation Only From 3 To 5% Of The Whole, But With 12 Hours' Exposure The Percentage Of Thorium Emanation Rose To About 15.
  • (For the significance of this fact see Radioactivity.) The richest known source is thorianite, which consists mainly of thorium oxide, and contains 9.5 cc. of helium per gram.
  • Monazite, a phosphate of thorium and other rare earths, contains on the average about i cc. per gram.
  • In two cases, however, it has been found in the absence of appreciable quantities of uranium and thorium compounds, namely in beryl, and in sylvine (potassium chloride).
 

How would you define thorium? Add your definition here.

comments powered by Disqus