PPT-Name the following covalent compounds:

  1 SeF 6   2 TeO 3   3 H 2 O  . Ch. . 16. Covalent Compounds. Covalent bonds. form when atoms share . their valence electrons. .. Covalent compounds. are formed from 2 or more nonmetals.. Rules for Naming Covalent Compounds. 1. Prefixes are used to show how many atoms of each element are present in the compound . Why do atoms bond?. Atoms gain stability when they share electrons and form covalent bonds.. Lower energy states make an atom more stable.. Gaining or losing electrons makes atoms more stable by forming ions with noble-gas electron configurations.. Directions: Name these compounds. List if they are either ionic or covalent.. PBr. 3. Na. 2. SO. 4. CF. 4. Directions: Write the formula for the following compounds.. carbon monoxide. sulfur dichloride. Ball-and-stick model. Molecular . Compounds. OBJECTIVES:. Distinguish. between the melting points and boiling points of . molecular. compounds and . ionic. compounds.. Molecular . Compounds. OBJECTIVES:. Bonding. Bonding models for methane, CH. 4. . Models are NOT reality. Each has its own strengths and limitations.. Ga . Standards. Students know . atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic bonds.. Bonding Discussion. Bonding. . Ionic. . Covalent. . Metallic. Determined by difference in Electronegativity between atoms.. Ionic . Compounds. Crystalline . solids (made of ions) . High melting and boiling points . Types of bonds. Ionic bonding. results from electrostatic attractions among ions, which are formed by the . transfer. of one or more electrons from one atom to another.. Covalent bonding. results from . By: Andres F Sanchez. Molecular Orbital!. Molecular Orbital- . The space that shared electrons move in. Covalent Bond- . when two atoms share electrons. Energy and Stability. Most atoms have low stability except noble gases. Ionic bonds . result when electrons are transferred between atoms. Covalent bonds . result when valence electrons are shared between atoms. Types of Bonds. Formed between a . metal. and a . non-metal. a. calcium oxide . CaO. . b. potassium bromide . KBr. . c. zinc fluoride ZnF. 2. . d. gold (III) iodide AuI. 3. . e. aluminum chloride AlCl. 3. f. iron (II) sulfide . FeS. . g. silver nitride Ag. Covalent bonds . result from the . sharing . of electrons. between two atoms.. A covalent bond is a . two-electron bond . in which the bonding atoms share valence electrons.. A . molecule . is a discrete group of atoms held together by covalent bonds.. I. onic compounds form between a metal and a nonmetal.. The metal forms a . cation. (+ ion) and the nonmetal forms an anion (-ion).. The . cation. is always named first and is the element name.. The anion is always named second – the root of the element name with an –ide ending.. When elements combine to form compounds a chemical reaction occurs creating a new compound with properties that are different from the original elements.. When a new compound is formed it has a new chemical formula. A . The Covalent Bond. Section 9.1. Worldwide, scientists are studying ways to increase food supplies, reduce pollution, and prevent disease. Understanding the chemistry of compounds that make up fertilizers, pollutants, and materials that carry genetic information is essential in developing new technologies in these areas. An understanding of the chemistry of compounds requires an understanding of their bonding..