Basic Science Review Game Questions – Units 1 to 4 Properties of Atoms & Molecules List the subatomic particles that make up atoms -protons -neutrons -electron The nucleus of every atom contains ?? Protons & neutrons The subatomic particle that has no charge Neutron The smallest particle in an atom Electron Anything that takes up space & has mass Matter The term for each element’s mass Atomic mass unit (amu) Two atoms of the same element bonded together Diatomic molecule The term for the # of protons an element has Atomic # The term for 2 or more atoms chemically bonded molecule If an element has an atomic mass of 18 with 9 neutrons, it’s atomic # is ___ 9 Carbon-14 has an atomic mass of 14 amu & an atomic # of 6; therefore it has ___ electrons 6 The term for atoms that differ in the number of neutrons in the nucleus isotope Valence Which would be more likely to bond with other elements, K (Group 1) or Ar (Group 8)? K Compound The term for all the elements that have the same # of electrons in their outer shell Group or Column or Family 8 Elements in which column are most likely to react with elements in column VIA (6A)? IIA (2A) Non-metal Metal, metalloid, or nonmetal? Semi-conductor Metalloid Metal Metal, metalloid, or nonmetal? Most often a gas Non-metal The term for the # of electrons in the outer shell of an atom NaCl is a(n) -element or -compound or -diatomic molecule? Which column in the Periodic Table is the most stable? Metal, metalloid, or nonmetal? does not conduct electricity Metal, metalloid, or nonmetal? Solid at room Temperature Periods are rows / columns on the Periodic Table? Rows Alkali Metals are in Column ___ of the Periodic Table 1 Alkali-earth metals are found in column___ of the Periodic Table 2 T or F – Hydrogen is very reactive T Oxygen is lighter than Hydrogen – T or F? F Hydrogen is sometimes grouped with the halogens – T or F? T T Name 2 characteristics of metals (any 2 from this list) -ductility (ductile) -malleable -conduct electricity -shiny / luster Ionic Bond Ionic, Metallic, or Covalent Bond? Electrons pulled or given away Ionic bond Ionic, Metallic, or Covalent Bond? Does not conduct electricity Covalent bond Ionic, Metallic, or Covalent Bond? Free electron model Metallic bond Which would form ionic bonds, Li – F or C – H? Li – F The common ingredient in all natural ceramics Clay T or F – ions are electrically neutral F T or F – covalent bonds occur between non-metals T T or F – metallic bonds form between elements with similar low electronegativity’s T T or F – brass is an alloy of copper & zinc T ____ bonds occur between elements with very different electronegativity’s Ionic T or F – higher temperatures lower the reaction rates of chemicals F Carbon atoms form organic compounds – T or F? Ionic, Metallic, or Covalent Bond? Forms ions Greater surface area ____ the reaction rates of chemicals (affects or does not affect?) Affects Which will have greater surface area – a whole tablet (pill) or a broken one? Broken one Carbon dioxide breaking down into carbon & oxygen is a ____ reaction Decomposition H + OH forming water is an example of a ____ reaction Composition AX + BY → AB + XY is what type of reaction? -single or double replacement? Double replacement (or displacement) A + XY → X + AY is what type of reaction? - single or double replacement? Single replacement (or displacement) The term for the beginning ingredients on the left side of a chemical reaction Reactants The term for the final ingredients on the right side of a chemical reaction Products A reaction where heat energy is produced Exothermic A reaction where heat energy is absorbed Endothermic Give an example of a lab we did that involved an exothermic reaction Steel wool & vinegar or alka-seltzer tablet in water The term for a chemical that speeds up chemical reactions Catalyst The enzyme in potatoes that breaks down hydrogen peroxide into water & oxygen Catalase The term for something that slows down reaction rates Inhibitor A natural inhibitor that we put on apples to prevent oxidation Lemon juice What metal is a catalyst used in making margarine? Nickel Enzymes The term for the energy required to break the bonds so reactions can take place Activation energy The term for very important catalysts found in living cells aiding in digestion & muscle contraction