Electronegativity is best described as

an atom's ability to attract another atom's valence electrons.

The molecular geometry of ammonia, NH3 is shown below. (EN: N = 3.0, H = 2.1)

Ammonia is a polar molecule with a molecular dipole.

The structural formulas for three molecules with accompanying bond dipoles are shown below. How many are polar?

Two of the three molecules are polar.

Sulfur hexafluoride (SF6) is a very dense gas with the structure shown below. Select the best statement about SF6

SF6 has polar bonds and is a non-polar molecule.

The structural formula for SO2 is shown below. Based upon this information

The molecule would have bond dipoles pointing toward oxygen.

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Unit 02 Bonding: Molecular Polarity

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electronegativity, bond dipole, molecular dipole, polar and non-polar molecules.

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Questions 10

Answers

1
Electronegativity is best described as
an atoms ability to form bonds with a molecular dipole.
an atom's ability to attract its own valence electrons.
an atoms ability to form bonds with a bond dipole.
an atom's ability to attract another atom's valence electrons.
2
The molecular geometry of ammonia, NH₃ is shown below. (EN: N = 3.0, H = 2.1)
Ammonia is a polar molecule with a molecular dipole.
Ammonia is a non-polar molecule with a molecular dipole.
Ammonia is a polar molecule with no molecular dipole.
Ammonia is a non-polar molecule with no molecular dipole.
3
Fluorine will form the most polar bond when covalently bonded to
Hydrogen
Oxygen
Carbon
Fluorine
4
The structural formulas for three molecules with accompanying bond dipoles are shown below. How many are polar?
Two of the three molecules are polar.
All three molecules are polar.
None of the molecules are polar.
One of the three molecules is polar.
5
Sulfur hexafluoride (SF₆) is a very dense gas with the structure shown below. Select the best statement about SF₆
SF6 has polar bonds and is a non-polar molecule.
SF6 has non-polar bonds and is a non-polar molecule.
SF6 has non-polar bonds and is a polar molecule.
SF6 has polar bonds and is a polar molecule.
6
The structural formula for SO₂ is shown below. Based upon this information
The molecule would have bond dipoles pointing toward sulfur.
The molecule would have bond dipoles pointing toward oxygen.
The molecule would not have any bond dipoles.
The molecule would have bond dipoles pointing toward oxygen and sulfur.
7
Which of the following elements has the largest electronegativity?
Carbon
Oxygen
Fluorine
Hydrogen
8
Molecules with a molecular dipole will always be polar.
False
True
9
Molecules with bond dipoles with always be polar.
True
False
10
A molecule contains two atoms covalently bonded & has a linear molecular geometry. All atoms are different elements.
More information is required.
This molecule is polar .
The molecule is ionic.
This molecule is non-polar.

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