OCR Text |
Show Classification of Radium. Rurgo and Procht, Rovtio Scion-tlflquo, Scion-tlflquo, havo classified radium by tho epectroscopo. The most tntonao lenses of the spark-spoctrura or radium are rigorously analogous to tho strongest lines of barium and its congonors magnesium, calcium and strontium. They placo tho atomic weight of radium ra-dium at 257.8. This high atomic weight furnishes In part tho explanation explana-tion of tho caso with which Its elements ele-ments split Into olectrons to produco radioactivity. |