_____ 1. In a chemical bond, the link between atoms results from the attraction between electrons and
                (A) Lewis structures        (B) nuclei        (C) van der Waals forces        (D) isotopes

_____ 2. A covalent bond consists of
                (A) a shared electron                (B) a shared electron pair       
                (C) two electrovalent ions          (D) an octet of electrons

_____ 3. If two covalently bonded atoms are identical, the bond is identified as
                (A) nonpolar covalent        (B) polar covalent        (C) nonionic        (D) coordinate covalent

_____ 4. A covalent bond in which there is an unequal attraction for the shared electrons is
                (A) nonpolar        (B) polar        (C) ionic        (D) dipolar

_____ 5. Atoms with a strong attraction for electrons they share with another atom exhibit
                (A) zero electronegativity        (B) low electronegativity       
                (C) high electronegativity        (D) Lewis electronegativity

_____ 6. Bonds with between 5% and 50% ionic character are considered to be
                (A) ionic        (B) pure covalent        (C) polar covalent        (D) nonpolar covalent

_____ 7. A nonpolar covalent bond is likely to exist between
                (A) a metal and a nonmetal        (B) two ions        (C) two identical atoms        (D) an atom and an ion

_____ 8. The greater the electronegativity difference between two bonded atoms, the greater the percentage of
                (A) ionic character        (B) covalent character        (C) metallic character        (D) electron sharing

_____ 9. In which of these compounds is the bond between the atoms NOT a nonpolar covalent bond?
                (A) Cl2        (B) H2        (C) HCl        (D) O2

10. The electrons involved in the formation of a chemical bond are called _________________________________.

11. A chemical bond resulting from electrostatic attraction between positive and negative ions is called a(n)

12. If the electrons involved in bonding spend most of the time close to one atom rather than the other, the bond is

For questions 13 & 14, refer to the following information.

% Ionic Character    100%                                    50%                                            5%    0%

Difference in             4.0                                       1.7                                             0.3     0.0
Electronegativity                    Ionic                                        Polar Covalent               Nonpolar

13. The difference in electronegativity and the type of bond for the Li-Cl bond in LiCl (electronegativity value for
      Li = 1.0;  electronegativity value for Cl = 3.0) are ______________________________________________.

14. The difference in electronegativity and the type of bond for the Br-Br bond in Br2 (electronegativity value for
      Br = 2.8) are _____________________________________________________.

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