Chapter 7 Test Questions by phf13063

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									       Chapter 7 Test Questions
 1.Chemical bonding is the combining of elements to form
       A. atoms           B. energy levels
    C C. substances D. electrons
2. The center of an atom is called the
D A. electron B. energy level C. octet D. nucleus
3. The maximum number of electrons in the second
   energy level is
C      A. 1 B. 2 C. 8 D. 18

4. Bonding that involves sharing of electrons within a
   molecule is called
B A. metallic B. covalent C. ionic D. network
5. Bonding that involves transfer of electrons within a
   molecule is called
B A. metallic B. ionic C. covalent D. crystal

6. An example of a polyatomic ion is
A A. SO4 B. Ca C. NaCl D. O2

7. Table salt is an example of a(n)
   A. ionic bond      B. covalent bond
A C. metallic bond D. hydrogen bond
8. Bonding between atoms on the left and right sides of
   the periodic table tends to be
B A. covalent B. ionic C. metallic D. impossible
9. The type of chemical bond that joins one or more
   elements together is determined by
      A. atomic mass
B B. the arrangement of electrons
      C. the arrangement of neutrons
      D. the total number of electrons

10. Chemical bonding occurs so that atoms can
    A. gain electrons C. share electrons
D B. lose electrons D. obtain complete outermost
                         energy levels

11. Covalent bonded atoms are usually formed by
    A. nonmetal to a nonmetal C. metal to a nonmetal
A B. metal to a metal      D. noble gas to a nonmetal
    True - False
F   12. Malleable solids are substances whose molecules are
         very large.

F 13. A charged atom is called a molecule.
T 14.   Bromine is a diatomic element.

    15. The type of chemical bond formed by an atom is
         determined by the arrangement of its innermost
    F electrons.

F 16. Covalent bonds form crystals.
    17. The tendency of an atom to attract electrons is called
          electron affinity.
    T
18. When ionic bonding occurs between two atoms
    A. only a loss of electrons takes place
    B. one atom loses electrons while the other atom gains
B       electrons
    C. only a gain of electrons takes place
    D. electrons are shared equally by the two atoms

19. Metallic bonded atoms are usually formed by
    A. nonmetal to a nonmetal C. metal to a nonmetal
B B. metal to a metal D. noble gas to a nonmetal
20. Atoms with a low ionization energy
A A. lose electrons easily C. tend to form negative ions
    B. gain electrons easily D. tend to remain neutral

21. The elements with low ionization energy
    A. inert B. nonmetals C. metalloids D. metals
D
 22.Valence electrons are found
    A. in the energy level closest to the nucleus
C B. throughout the electron cloud
    C. in the outermost energy level
    D. in the nucleus

 23. When the outermost energy level of an atom contains
   the maximum number of electrons
     A. ionic bonding occurs      C. metallic bonds form
 D B. covalent bonding occurs D. the atom is stable
24. When an atom loses electrons, it
    A. becomes positively charged
A B. becomes negatively charged
    C. obtains a neutral charge
    D. will form a metallic bond
25. The number of elements that are diatomic is
     A. 2 B. 4 C. 7 D. 8
C
26. The formation of a chemical bond involves
    A. other protons             B. protons and electrons
D C. electrons and neutrons D. only the electrons

27. The electrical charge on an atom as a whole is
    A. neutral       B. negative
A C. positive        D. dependent on the atomic number

28. A high electron affinity is characteristic of elements that
  are
C A. metalloids B. metals C. nonmetals D. inert

								
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