Top 10 chemical elements facts Selected as the most interesting among chemical elements related questions in Chemical elements quiz If a gun bullet was made of gold, what properties would it have?Armor-piercing. The density of gold is 19,320 kg/m3, which is higher than of uranium (18,800) and much higher than of lead (11,340). The armor-piercing ammo is made of uranium for its high density - golden bullets would work for this purpose even better.Created by: Cleogold facts » What is the name of the most radioactive isotope on the planet?Polonium 210. 210Po is extremely toxic, with one microgram being enough to kill the average adult (250,000 times more toxic than hydrogen cyanide by weight).210Po was used to kill Russian dissident and ex-FSB officer Alexander V. Litvinenko in 2006,Created by: Tschuka physics facts » Which naturally occuring chemical element is the densest?Osmium. The density of osmium is 22,570 kg/m3, slightly more than Iridium (22,420) and platinum (21,450). Commonly used metals are considerably less dense - the density of iron is 7,870, lead 11,340 and mercury 13,456.Created by: globalquiz.orgmetals facts » Which chemical element forms compounds which are typically intensely colored?Chromium. The name of chromium means colour in Greek. Its compounds are used as pigments, including chrome yellow which had been used to paint school buses and chromium oxides used as a green color in glassmaking. Natural rubies are colored red due to chromium ions.Created by: life-o-holicLatin facts » What gave the name to the indium chemical element?Indigo dye. In 1863, the German chemists Ferdinand Reich and Hieronymous Theodor Richter found a blue line in the spectrum of tested minerals. As no element was known with a bright blue emission, they concluded a new element was present, and they named it from the indigo color in its spectrum.Created by: Luca BiaggiIndia facts » Where was scandium chemical element discovered?In Sweden. Scandium was discovered in 1879 by Lars Fredrik Nilson at the Uppsala University. He named it from the Latin word Scandia meaning "Scandinavia"Created by: globalquiz.orgdiscoveries facts » Which chemical element was discovered in Russia?Ruthenium was discovered in 1844 by the Beltic German sciencist Karl Ernst Claus at the Kazan State University. He named it after Ruthenia, the Latin word for Rus',.Created by: life-o-holicnames facts » Which chemical element has the symbol Ta?Tantalum was named by its discoverer, Swedish chemist Anders Ekberg for Tantalus, a Greek mythological figure, most famous for his eternal punishment in Tartarus. Tantalus was made to stand in a pool of water beneath a fruit tree with low branches, with the fruit ever eluding his grasp, and the water always receding before he could take a drink. Ekberg selected the name because the elment's inability to absorb acid recalled Tantalus' punishment to him.Created by: globalquiz.orgchemistry facts » What is the half-time of radiocarbon? (carbon-14)5730 years. Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Carbon-12 and carbon-13 are both stable, while the half-life of carbon-14 is 5,730 ±40 years. Created by: Tschuka geology facts » Which of the following metals is the most reactive?Cesium. Caesium or cesium is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal . Is most reactive of all metals. Created by: Tschuka chemistry facts » Play chemical elements quiz and see all the questions.