25. (Continued)
Match each term in column A with its definition in column B.
A
B
_____ (1) Conductor.
a. Elements whose atoms have four
valence electrons.
_____ (2) Insulator.
b. Elements whose atoms have more
_____ (3) Semiconductor.
than four valence electrons.
c. Elements whose atoms have
complete "L" shells.
d. Elements whose atoms have less
than four valence electrons.
(1) d.
26. Match each term in column A with its definition in column B.
(2) b.
A
B
(3) a.
_____ (1) Ionic bonding.
a. The continual exchange of valence
electrons between several atoms.
_____ (2) Covalent bonding.
b. Occurs when atoms share electrons
_____ (3) Metallic bonding.
in order to achieve chemical
stability.
c. Occurs when one atom gives up an
electron that is used by another
atom to achieve chemical stability.
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IT0341
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