Word: barium
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...been reproduced and extended in dozens of laboratories in a half-dozen countries, notably England, Italy, the U. S. Italy's Professor Enrico Fermi and his aids have coaxed radiations of beta particles (fast electrons) from phosphorus, iron, silicon, aluminum, chlorine, vanadium, copper, arsenic, silver, tellurium, iodine, chromium, barium, fluorine, sodium, magnesium, titanium, zirconium, zinc, strontium, antimony, selenium, bromine...
Most assiduous imitator of the Curie-Joliots is Professor Enrico Fermi, 32, Italian physicist. Using neutrons instead of alpha particles or deutons, he has produced radioactive forms of two dozen elements from fluorine to barium...
...automobile in which he pursues rats throughout the U. S., bringing with him two large suitcases and his young wife. Ratkiller Nicholes went to work. Wherever rats were plentiful he distributed pieces of bread, hamburger steak and apples, in each piece of food a drop of his chemical (barium carbonate with a slight touch of barium sulphide). Because the Nicholes poison is comparatively slow acting the rats do not die on the premises they infest. Hungry human beings who might eat the poisoned food, which is odorless would not be harmed. They would vomit immediately. Rats cannot vomit...
...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...
...until the 19th century did pyrotechny make big advances. Prior to this time saltpetre, carbon, sulphur made up the colorless displays. As various metal salts were discovered they were introduced to make colors in fireworks. Strontium and lithium salts give red: barium and copper, green; other copper salts blue. Last great advance was the discovery that magnesium and aluminum salts impart white brilliance to fireworks...