10 most difficult chemical elements riddles A list of ten (out of 49) chemical elements related questions that are the most often answered incorrectly Chemical elements quiz What is the name of the most radioactive isotope on the planet? Rad 226 Uranus 235 Polonium 210 plutonium 244 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. Ts Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question wikipedia → Polonium 6 Very interesting! isotopes riddles Which chemical element has the symbol Sb? silicon seaborgium antimony tin Sb is the chemical symbol of antimony, from stibium, the Latin name for "black antimony". Si stands for silicon, Sg - seaborgium, Sn - tin. globalquiz.org Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question 1 Very interesting! chemistry riddles The rarest chemical element naturally ocurring in the Earth's crust is... rhenium iridium osmium astatine Astatine is a radioactive chemical element with symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements. The total amount of astatine in the Earth's crust is estimated to be less than one gram at any given time. synapsaa Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question wikipedia → Astatine 3 Very interesting! records riddles What gave the name to the indium chemical element? country of India city of Indianapolis Indigo dye its chemical indifference 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. Luca Biaggi Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question wikipedia → Indium 3 Very interesting! history of chemistry riddles Which letter is not used as a symbol of a chemical element? T U V W U is the chemical symbol of uranium, V - vanadium, W - tungsten. globalquiz.org Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question 0 Very interesting! chemistry riddles Which of the following metals is the most reactive? sodium potassium rubidium 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. Ts Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question wikipedia → Caesium 3 Very interesting! metals riddles Which element is blue in liquid state? hydrogen nitrogen oxygen helium Liquid oxygen has a pale blue color and is strongly paramagnetic. The first measurable quantity of liquid oxygen was produced by Polish professors Zygmunt Wróblewski and Karol Olszewski (Jagiellonian University in Kraków) on April 5, 1883. Ts Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question wikipedia → Liquid oxygen 0 Very interesting! science riddles Which naturally occurring chemical element is the densest? helium lead osmium platinum 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. globalquiz.org Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question wikipedia → Osmium 3 Very interesting! metals riddles What is the chemical symbol of plutonium? P Pu Pt Po P is the chemical symbol of phosphorus, Pt - platinum, Po - polonium. globalquiz.org Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question 0 Very interesting! chemistry riddles Which of the following is not a chemical element? roentgenium darwinium copernicium einsteinium Roentgenium, copernicium, and einsteinium are chemical elements. There is no such thing like a darwinium. globalquiz.org Share and bring new players to the game! Correct this question 0 Very uninteresting Too difficult Poorly written Incorrect or questionable Correct this question 3 Very interesting! scientists riddles Play and see more questions Chemical elements quiz
