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molecular compounds are compounds consisting of nonmetals

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Presentation on theme: "molecular compounds are compounds consisting of nonmetals"— Presentation transcript:

1 molecular compounds are compounds consisting of nonmetals
molecular compounds are compounds consisting of nonmetals they are formed when atoms share electrons to form stable arrangements this sharing of electrons forms a covalent bond (two nonmetal atoms sharing electrons) molecular compounds are non-electrolytes (they do not conduct electricity when dissolved in water) Type of compound Molecular Ionic Atoms involved nonmetals metal and nonmetal Conduction non-electrolytes electrolytes Bond type covalent (shared) ionic (transferred)

2 Writing Formulas For Molecular Compounds
The prefix in the name becomes the subscript in the formula sulfur dibromide SBr2 b. carbon tetrafluoride CF4 c. phosphorus pentoxide PO5 d. dinitrogen trioxide N2O3

3 Naming Molecular Compounds
check to make sure that both elements are non-metals write the names of both elements in the same order as the formula replace the ending of the second element with “ide” add prefixes – mono is never used for the first element Prefix # mon(o) 1 di 2 tri 3 tetra 4 penta 5

4 CO carbon monoxide CS2 carbon disulfide PBr5 phosphorus pentabromide SO3 sulfur trioxide CF4 carbon tetrafluoride

5 Common Names of Some Molecular Compounds
Water H2O Ammonia NH3 Nitric Oxide NO Methane CH4 Ozone O3

6 Elements which exist in nature in pairs (never on their own) Super 7
Diatomic Elements Elements which exist in nature in pairs (never on their own) Super 7 Seven of them they form the number seven Element Symbol Molecule hydrogen H H2 nitrogen N N2 oxygen O O2 fluorine F F2 chlorine Cl Cl2 bromine Br Br2 iodine I I2


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