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WorksheetsCovalent Bonds
Total questions: 13
Worksheet time: 7mins
Why do atoms share electrons?
to increase their atomic number
to become ions
to obtain noble gas electron configuration
to become less polar
Which of the following can form diatomic molecules held by triple covalent bonds?
N2
O2
F2
C2
Which of the following diatomic molecules can be formed with a double covalent bond?
N2
O2
F2
C2
Two elements join to form a triple bond. What is the shape of the molecule?
tetrahedral
bent
linear
diatomic
If two identical atoms bond covalently, the bond is:
a coordinate covalent bond
a dipole covalent bond
a nonpolar covalent bond
a polar covalent bond
What does a molecular formula tell you?
information about the molecule's structure
the number and kind of atoms bonded in the molecule
the whole-number ratio of atoms bonded in the molecule
the number and kind of atoms bonded by electron transfer
VSEPR theory is a model for predicting
ionization energy
the strength of metallic bonds
the shape of molecules
lattice energy values
Which of the following covalent bonds is the most polar?
H-N
H-C
H-H
H-F
If the atoms that share electrons have an unequal attraction for the electrons, the bond is called
dipolar
nonpolar
ionic
polar
In covalent bonds electrons are:
shared
transferred
mobile
A neutral group of atoms held together by covalent bonds is a
chemical formula
molecular formula
molecule
polyatomic ion
According to VSEPR theory, molecules adjust their shapes to keep which of the following as far apart as possible?
electrons closest to the nuclei
pairs of valence electrons
mobile electrons
protons
If the difference in electronegativity between two bonding atoms is less than 1.7 but greater than .03 the bond is
ionic
polar covalent
metallic
nonpolar covalent
