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Worksheets8.2 The Nature of Covalent Bonding
Total questions: 17
Worksheet time: 21mins
In .................. electron sharing usually occurs so that atoms attain the electron configurations of noble gases.
covalent bonds
ionic bonds
metallic bonds
Two atoms held together by sharing one pair of electrons are joined by a .................. covalent bond.
single
double
triple
A structural formula represents the covalent bonds as dashes and shows the arrangement of covalently bonded atoms.
True
False
A pair of valence electrons that is not shared between atoms is called ..........................
lone pair
bonding pair
shared pair
Draw electron dot structure for chlorine molecule.
Draw electron dot structure for oxygen molecule.
Draw electron dot structure for H2O2 molecule.
Draw electron dot structure for PCl3 molecule.
A ...................... covalent bond is a bond that involves two shared pairs of electrons
single
double
triple
A bond formed by sharing three pairs of electrons is a ........... covalent bond.
single
double
triple
A covalent bond in which one atom contributes both bonding electrons is a coordinate covalent bond.
True
False
In a coordinate covalent bond, the shared electron pair comes from one of the bonding atoms.
True
False
What is the type of bond between the oxygen atom and the hydrogen in the hydroxide ion.
Draw the electron dot structure of the hydroxide ion
The octet rule cannot be satisfied in molecules whose total number of valence electrons is an even number.
True
False
The energy required to break the bond between two ................ bonded atoms is the bond dissociation energy.
covalently
ionic
metallic
A large bond dissociation energy corresponds to a ................ covalent bond.
strong
weak
Chemists use resonance structures to envision the bonding in molecules that cannot be adequately described by a single structural formula.
True
False
