Classic Classic Quiz Lesson E-2 (Science) by Izzy927 Izzy927 76 played - 12 yrs ago Science Lesson E-2 QUIZ 12 QUESTIONS medium 1 A pure substance that cannot be broken down into any simpler pieces. ElementsNetutronCompound 2 The smallest unit of an element that retains the properties of that element. ProtronAtomsNucleus 3 A particle in the nucleus of an atom that carries one unit of positive electric charge. MoleculesPeriodic TableProtron 4 An atom's dense center where most of its masses are. CompoundElectric ChargesNucleus 5 An atom's dense center where most of its masses are. AtomsNeutronsProtrons 6 Any substance that is formed by a chemical combination of two or more elements and acts like a single substance (can only be broken down by a chemical reaction. ) ElementsMoleculesCompound 7 A particle that contains more than on e atom joined together. MoleculeProtronElements 8 How is a compound different from an element? None of these.A compound is 2 or more elements that are chemically combined.A compond has 2 or more subtances and an element has 4 9 Name 2 useful compounds Fax machine and a computerNone of these.Salt and Sugar 10 What is a chemical formula? A way to write a componds name using symbolsH2O and CO2Scintific names 11 How are elements classified? Chemical Reactivity or State at room tempuratureMetal/Non meatalAll of the above 12 What is the periodic table? Table of plantsTable of all the elementsTable to measure points of a game A mistake in this Quiz ? Contact the author Commentaires