Unit 3 Problem Set Name: ____________________________ #______ AP Chemistry Block: __________ Section 1: Types of Bonding Atoms having greatly differing Metals typically have _______ electronegativities are expected to form: electronegativity values. no bonds high covalent bonds low nonpolar covalent negative ionic bonds no covalent bonds two of Choose the compound with the most ionic The shared electron pair in a C-F bond could character. be considered LiCl closer to C because carbon has a larger KF radius and thus exerts greater control NaCl over the shared electron pair. LiF closer to F because fluorine has a higher KCl electronegativity than carbon. closer to C because carbon has a lower Atoms with very similar electronegativity electronegativity than fluorine. values are expected to form an inadequate since the bond is no bonds. ionic. covalent bonds. centrally located directly between the C triple bonds. and F. ionic bonds. none of these When electrons in a molecule are not found between a pair of atoms but move In the gaseous phase, which of the following throughout the molecule, this is called binary molecules would be the most polar? ionic bonding. CsF covalent bonding. CsCl polar covalent bonding. NaCl delocalization of the electrons. NaF a dipole moment. LiF As the number of between two carbon Which of the following groups contains no atoms increases, which one of the following ionic compounds? decreases? HCN, NO2, Ca(NO3)2 number of electrons between the carbon PCl5, LiBr, Zn(OH)2 atoms KOH, CCl4, SF4 bond energy NaH, CaF2, NaNH2 bond length CH2O, H2S, NH3 all of these In which pair do both compounds exhibit none of these predominantly ionic bonding? In which of the following compounds does PCl5 and HF the bond between the central atom and Na2SO3 and BH3 bromine have the greatest ionic character? KI and O3 LiBr NaF and H2O KBr RbCl and CaO SeBr2 AsBr2 CaBr2
Unit 3 Problem Set Name: ____________________________ #______ AP Chemistry Block: __________ Section 1: Types of Bonding Atoms having greatly differing electronegativities are expected to form: no bonds covalent bonds nonpolar covalent ionic bonds covalent bonds Choose the compound with the most ionic character. LiCl KF NaCl LiF KCl Atoms with very similar electronegativity values are expected to form no bonds. covalent bonds. triple bonds. ionic bonds. none of these In the gaseous phase, which of the following binary molecules would be the most polar? CsF CsCl NaCl NaF LiF Which of the following groups contains no ionic compounds? HCN, NO2, Ca(NO3)2 PCl5, LiBr, Zn(OH)2 KOH, CCl4, SF4 NaH, CaF2, NaNH2 CH2O, H2S, NH3 In which pair do both compounds exhibit predominantly ionic bonding? PCl5 and HF Na2SO3 and BH3 KI and O3 NaF and H2O RbCl and CaO Metals typically have _______ electronegativity values. high low negative no two of The shared electron pair in a C-F bond could be considered closer to C because carbon has a larger radius and thus exerts greater control over the shared electron pair. closer to F because fluorine has a higher electronegativity than carbon. closer to C because carbon has a lower electronegativity than fluorine. an inadequate since the bond is ionic. centrally located directly between the C and F. When electrons in a molecule are not found between a pair of atoms but move throughout the molecule, this is called ionic bonding. covalent bonding. polar covalent bonding. delocalization of the electrons. a dipole moment. As the number of between two carbon atoms increases, which one of the following decreases? number of electrons between the carbon atoms bond energy bond length all of these none of these In which of the following compounds does the bond between the central atom and bromine have the greatest ionic character? LiBr KBr SeBr2 AsBr2 CaBr2
unit_3_problem_set.docx