Review Chemical Bonding And Molecular Geometry
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Date ___________________ Block _____
Review Chemical Bonding and Molecular Geometry -
272
Complete each of the following sentences by filling in the appropriate word or phrase from
the list below.
negative
electrons
octet
polyatomic
positive
unshared pair
trigonal planar
VSEPR theory
noble gas
anion
cation
ions
1. An ionic bond is an attraction between oppositely charged ___ions____.
2. Anions have a ____negative__________ charge.
3. An atom becomes an ion by losing or gaining _______electrons___________.
4. The _____octet_____________ rule states that atoms tend to gain, lose, or share
electrons in order to acquire a full set of valence electrons.
5. When sodium and chlorine form an ionic bond, both ions acquire the electron
configuration of a(n)
____noble
gas_________.
6. The atoms that make up _____polyatomic____ ions are bonded together
by covalent bonds.
7. A pair of electrons not involved in a bond is called a(n)
_____unshared
pair______.
8. The theory that states that the pairs of valence electrons are arranged as far apart as
possible in small molecules is called the
____VSEPR
theory___.
9. A
________trigonal
planar___________ molecule is a flat triangular shape.
If the statement is true, write “true.” If it is false, change the underlined word or words to
make it true. Write your answer on the line.
_____seven_________ 10. The Lewis dot diagram for chlorine has six electrons.
_____covalent_______ 11. A group of atoms united by ionic bonds is called a molecule.
_______T___________ 12. A covalent bond is formed by a shared pair of electrons.
____unshared
pair____ 13. A pair of electrons not involved in bonding is called a shared
electron pair.
____equally_________ 14. In non-polar covalent bonds, the electrons are shared unequally
between two atoms.
______triple_________ 15. Lewis structures use a triple dash to represent a double bond.
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