Name: ___________________________ Period: ______ Regents Chemistry: Guided Notes, 5.3 Date: ___________________ Today’s Objective: SWBAT identify ionic, covalent, and metallic bonds in terms of element classification and properties. Discussion: Types of Bonding Bonding occurs between elements to create to create _________________________________ __________________ are composed of atoms of one kind Atoms of distinct element bond chemically to form ___________________________ Types of Bond 1. IONIC BONDS Ionic occurs between _________________ and ____________________ Large difference in electronegativity __________________ of electrons Create a ________________________ and ___________________________ Type 1 2. COVALENT BOND Covalent Bond Occurs Between ______________________ and __________________________ Small difference in electronegativity Both nonmetals = High electronegativities Sharing of ___________________________, overlap_______________________________ Type 2 3. METALLIC BONDS Metallic occurs between _________________________ and __________________________ _______________________ difference in electronegativity Both metals = Low electronegativities “Sea” of electrons, metals ______________________________ Type 3 Properties 1.Ionic Compounds ________________ melting and boiling points Form _________________, “__________________ solids” Hard and _________________________________ 2. Covalent Compounds ____________________________melting and boiling points 3.Metallic Compounds Electrons are __________________________, conduct ____________________ and ____________________ ****Conductivity (the ability or power to conduct or transmit heat, electricity) Ionic bonds _________________________________ Covalent Bonds ________________________________ Metallic Bond____________________________________ Check for Understanding: 1. An ionic bond can be formed when one or more electrons are A. equally shared by two atoms B. unequally shared by two atoms C. transferred from the nucleus of one atom to the nucleus of another atom D. transferred from the valence shell of one atom to the valence shell of another atom 2. Which kind of bond is formed when two atoms share electrons to form a molecule? A. ionic B. metallic C. electrovalent D. covalent 4.Which substance contains positive ions immersed in a sea of mobile electrons? A. O2(s) B. SiO2(s) C. Cu(s) D. CuO(s) What type of bond will form between the following pairs of atoms? (Ionic, Covalent, Metallic) H and F Na and O Cl and Cl Fe and S Si and O Mg and O