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L ock T ag T ry Since 2005 28 died in electrical a nd machinery accidents in which power was not disconnected and locked out before work was begun on power circuits or equipment Lockout Ta. Bonding. p. 144-156. Remember….. There are two kinds of pure substances. Elements. Compounds. Elements. Substance that cannot be separated or broken down into simpler substances by chemical means.. 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. Collett. 1. 2. 3. Pattern of Violations Screenings. 2010: . Revised POV program . Screened . over 14,000 mines each year. Completed four screenings. Number of mines identified for POV dropped since first screening in 2010. The Periodic Table of Elements. Foundations of Science. Atomic Structure Review. Protons determine what ______________ an atom is. Electrons determine the characteristics of an atom. Atomic Structure Review. Acid-Base Character of Oxides. Structure and Bonding of Oxides. Structure and Bonding of Oxides. M. etal Oxides vs. Nonmetal Oxides. . . MgO. . CO. 2. Structure and Bonding of Oxides. Incredible Opportunity…. Precious metal stocks represent one of the best opportunities in the market today.. The opportunity is potentially more attractive than the bull market of 2001-2008.. There are very . Vocabulary:. Demitri. Mendeleev. relative atomic mass. periodicity. atomic number. periodic law. family/group. Alkali . Metals. Alkali Earth Metals. Transition Metals. Halogens. Noble Gases. Inner Transition Metals. & IONS. Dalton: atomic theory. Atomic Structure &. Weights. P. Table. Molecules & Compounds. CMPDS: formula, name. Molecule/Cmpd. Cmpd: metal + nonmetal. transfer of e-. metal lose & nonmetal gains . I need to:. Write a formula. And I have:. 2 nonmetals. A metal and a nonmetal. A metal and a polyatomic ion. And I will:. Write the symbol for the element in the lowest group first. (exceptions – hydrogen always comes after carbon, and halogens always come before oxygen). Molecular Compounds: . Sharing Electrons. The names of molecular compounds need prefixes because several different compounds can be formed from the same two nonmetals. .. Learning Goal . Given the formula of a molecular compound, write its correct name; given the name of a molecular compound, write its formula.. Noble gases and diatomic elements (except bromine, and iodine). These all have only London dispersion forces. . These are very weak intermolecular forces.. They all have very low melting points, obviously since they are gases.. 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.. SmartStarter. What is the octet rule?. SmartStarter. Draw the electron dot diagram for ionic compound MgCl. 2. Compare. – Eyes on Chemistry. Epsom Salts. Rock Salt. Sucrose. One more…. WHAT DO YOU NOTICE ABOUT THEIR STRUCTURE?. Sharing Electrons. The names of molecular compounds need prefixes because several different compounds can be formed from the same two nonmetals. .. Learning Goal . Given the formula of a molecular compound, write its correct name; given the name of a molecular compound, write its formula..