RESOURCES to STUDY STUDY GUIDE FOR EXAM CHAPTER 6:CHEMICAL BONDS Chemical Bonds Flow Chart POGIL: Naming Molecular Compounds, Naming Ionic Compounds, Polyatomic Ions Molecular Geometry CW Packet: Chapter 6: Chemical Bonds HW Packet: Chapter 6: Chemical Bonds Chapter 6 Review Periodic Table of Ions-polyatomic ions and cations with multiple charges Quizzes STUDY GUIDE FOR EXAM CHAPTER 6: CHEMICAL BONDS ANYTHING ELSE RELATED TO CHAPTER 6

Ionic Bonds CHEMICAL BONDS Graphic Organizer a bond formed when a METAL and NONMETAL(S) transfer electron(s) Naming ionic compounds determine CATION(+) and ANION(-) 1) is it monoatomic ion (ONLY 1 element) 2)does it include a transition metal (look at PT) 3) does it include a polyatomic ion (look at your list of polyatomic ions) cation(+): name stays the same anion(-): drop ending and add -IDE Monoatomic Ion (1) determine the charge of the TM (2) cation(+): keep name and add roman numeral t(within a parenthesis)o represent the charge (3) anion:(-): single element-drop ending and add IDE -if polyatomic keep the name TRANSITION METAL (TM) reagardless if polyatomic ion is CATION or ANION its name will STAY the SAME POLYATOMIC ION Writing Ionic Formula Electroneutrality SUM OF NET CHARGES MUST EQUAL ZERO (0) (1) charge cation + anion= 0 then write symbols without charge (2) charge cation + anion≠ 0 then find a # that when multiplied by charge gives the SUM of 0 *# becomes SUBSCRIPT (3) if there is not such a # find LCM of both charges # becomes SUBSCRIPT STEPS CHEMICAL BONDS Graphic Organizer Name:____________ Per:____ Date:______ Ms. Plummer Ex. Ex.

Covalent Bonds EX. EX. Naming covalent compound A bond formed when two or more nonmetals share electrons Naming covalent compound (1) Use prefix to show the # of atoms for each element (2) 1st element does not need prefix if ONLY ONE ATOM (3) 2nd element ALWAYS needs prefix Mono=1 di=2 tri=3 tetra=4 Penta=5 hexa=6 hepta=7 octa=8 Nona=9 deca=10 HW-watch videos, take notes, write examples, and make visual representations for covalent and ionic bonds-use appropriate graphic organizer. Writing covalent formula http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::100%::100%::/sites/dl/free/0072512644/117354/rev01_Ionic_vs_Covalent.swf::Ionic%20vs.%20Covalent%20Bonding (1)Prefix tells how many atoms= subscript (2) If 1st element does not have prefix then it is one. DO NOT use subscript of 1 b/c it is understood http://www.schooltube.com/video/80f7d9bb582fb58b547d/Ionic-and-covalent-bonding-animation EX. EX.

CW STEPS Lewis Structures Determine the number of atoms of each element present in the molecule. Write the electron-dot notation for each type of atom. Determine the total number of valence electrons available in the atoms to be combined. C always central atom, H always external atom, least EN is the central atom if C is not present. Place central atom, then external atoms Place bonding pairs Check if octet rule or exception is followed Determine ve- remaining If you have what you need distribute lone pairs if NOT create multiple bond Draw bond(s)

QUIZ Chemical formula: Chemical name: LONE PAIRS Valence electrons remaining Total valence electrons Distributed Valence electrons Valence electrons available for lone pairs (HAVE) LONE PAIRS HAVE NEED ________ ve- _________ ve- # bonding pairs:______ # lone pairs:_______

POGIL: Naming molecular compound

KEY TERMS Diatomic atom Electronegativity Compound Chemical formula Chemical bond Ionic bond Metallic bond Covalent bond Lattice energy Octet rule Ion Cation Anion Polyatomic ion Molecule Single bond Double bond Triple bond Diatomic atom Electronegativity Compound Chemical formula molecular geometry Bent Trigonal planar Tetrahedral Linear Pyramidal VSPER Bond length Valence electrons

Electronegativity difference RANGES 1.7 or greater :Ionic Bond USE ELECTRONEGATIVITY DIFFERENCES TO DTEREMINE TYPE OF BOND Electronegativity difference RANGES 1.7 or greater :Ionic Bond 0.3 or less: nonpolar covalent Bond 0.3-1.7 polar covalent bond

Trend of main group elements when forming ions Group 1 will lose 1 valence electron and become a 1+ CATION *HIGHLIGHT NOTES FORM CW PACKET THAT SHOWS TRENDS FROM GROUP 1-8 Recognize polyatomic ion Identify charges of main group elements Label type of bond: Ionic bond or covalent bond or metallic bond Draw Lewis structure of covalent compounds Use electron-dot notation to demonstrate the formation of the ionic compound Use VSPER theory to predict and draw the molecular shape of molecules.