Word: boron
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
...cosmic construction (Millikan theory) or cosmic disintegration (Jeans theory). They may be the neutrons which Dr. James Chadwick of Cambridge University found bombarded out of beryllium (TIME, March 7) and which Dr. H. C. Webster of the University of Bristol last week reported that he had knocked from boron and fluorine...
...noteworthy that neutrons have been recognized as coming from elements which are the lightest of their groups in the Periodic System. Beryllium is the lightest of the earth alkali group (beryllium, magnesium, calcium, strontium, barium, radium). Boron is lightest of the earth metals (boron, aluminum, scandium, yttrium, lanthanum, actinium). Fluorine is lightest of the halogens (fluorine, chlorine, bromine, iodine and, newly recognized, alabamine...