Name: ___________________________ Hour :______ Chemistry Review A) Structure of an Atom Location Mass Charge Proton _______________________ _______________________ _______________________ Neutron _______________________ _______________________ _______________________ Electron _______________________ _______________________ _______________________ B) History of the Atomic Model Can you identify the difference between the following atomic models? - John Dalton - JJ Tompson - Ernest Rutherford - Niels Bohr - Electron Cloud Model C) Finding Info from the Periodic Table Name Symbol Atomic Number Average Atomic Mass Number of Valence Electrons Lewis Dot Structure Cesium Phosphorus Xenon D) Groups on the Periodic Table List three elements in each of the groups from the periodic table Noble Gas Metalloid Halogen Alkali Metal Alkaline Earth Metal Transition Metal E) Working with atomic particles Fill in the missing parts to the table Isotope Name Atomic Number Neutrons Oxygen – 16 Electrons Mass Charge 9 11 10 4 +2 6 9 F) Vocabulary Match the following chemistry vocabulary term with the correct definition 1) ________ Atomic Number a) A bond between two non-metals that involves the sharing of electrons 2) ________ Atomic Mass b) A bond between a metal and non-metal that involves giving and taking of 3) ________ Valence Electrons electrons 4) ________ Isotope c) An atom with a positive or negative charge 5) ________ Ion d) Represents the number of protons within an atoms nucleus 6) ________ Compound e) Anything that stops or prevents a reaction. 7) ________ Ionic Bond f) Ability to be drawn into wire 8) ________ Covalent Bond g) Shiny 9) ________ Endothermic h) A reaction that absorbs heat or energy 10) ________ Nucleus i) Average mass of all an elements isotopes 11) ________ Average Atomic Mass j) Anything that speeds up a reaction 12) ________ Malleable k) Covalent bond with uneven sharing resulting in a charge 13) ________ Ductile l) 14) ________ Inhibitors m) Smallest most basic unit of matter 15) ________ Nonpolar Molecule n) Ability to be hammered or rolled into sheets 16) ________ Polar Molecule o) Matter cannot be created or destroyed 17) ________ Physical Change p) Electrons in the outer most energy level. All atoms want 8 except H and He 18) ________ Chemical Change q) Covalent bond with even sharing resulting in no charge 19) ________ Law of Conservation of Mass r) Positively charged center of an atom 20) ________ Exothermic s) A reaction that causes a release of heat and energy 21) ________ Atom t) 22) ________ Catalysts u) The same element but with a different number of neutrons 23) ________ Luster v) A change in chemical structure resulting in new products A combination/bonding of 2 or more atoms A change in an objects shape, size or state of matter. w) This is found by adding the number of protons and neutrons together G) Bonds Draw out steps 1 and 2 to creating the following bonds. But first make sure you identify what type of bond (ionic or covalent) is being formed. Type of Bond = _________________________________ Type of Bond = _________________________________ Step 1) Step 1) Step 2) Step 2) Step 3) Na2O Step 3) C2H5I H) Chemical Reactions Balance the following Chemical Reactions and determine what type of reaction they are (combination, decomposition, single replacement, double replacement) ___CH4 + ___Cl2 ____CCl4 + ____H2 Type of Reaction: ________________ ___Ca + ___ O2 ___ CaO Type of Reaction: ________________ ____ NH3 + ____ I2 ____ N2I6 + ____ H2 Type of Reaction: ________________ ____ PbSO4 ____ PbSO3 + ____ O2 Type of Reaction: ________________ I) Organic Chemistry Fill in the following chart for the first 10 Alkanes Formula Name Picture J) Moles 1) What is Avogadro’s Number? ___________________________ 2) Solve the following problems i) 1.92 moles of Cl = _______________ molecules of Cl ii) 8.1x 1023 atoms of He = ________________ moles of He iii) 2.1 moles of MgO = _________________ grams of MgO iii) 10.12 x 1022 atoms of Si = ________________ grams of Si