Electronegativity

Define electronegativity.

• The ability of an electron to attract atom to itself.

• The ability of a molecule to attract electrons to itself.

• The ability of an atom to attract electrons to itself.

• The ability of an ion to attract electrons to itself.

The trend of electronegativity ________ across the period and _________down the group?

• increases... increases

• decreases... decreases

• decreases... increases

• increases... decreases

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Which of the following ordered pairs of elements has the highest difference in electronegativity?

• Li and Be

• Li and F

• O and F

• F and F

Put these in increasing order of electronegativity:
F, N, B

• B < N < F

• B < F < N

• N < F < B

• F < N < B

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Electronegativity is a measure of _____.

• the attraction of atoms for paired electrons within a bond.

• the energy released when an electron is added to an atom.

• the energy required to remove an electron from an atom.

• None of the answers listed are correct.

Answer explanation

Electronegativity is a measure of the attraction of atoms for paired electrons within a bond.

How does electronegativity affect the type of bond formed between two atoms?

• A large difference in electronegativity leads to a metallic bond

• A small difference in electronegativity leads to an ionic bond

• A large difference in electronegativity leads to an ionic bond

• Electronegativity has no effect on the type of bond formed

What trend does electronegativity follow on the periodic table?

• Increases from left to right and decreases from top to bottom

• Decreases from left to right and increases from top to bottom

• Increases from left to right and increases from top to bottom

• Decreases from left to right and decreases from top to bottom

Answer explanation

Electronegativity increases from left to right across periods and decreases from top to bottom within groups on the periodic table.

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What is the electronegativity value of Fluorine on the Pauling scale?

• 2.1

• 3.0

• 4.0

• 1.5

Which of the following is a characteristic of elements with high electronegativity?

• They are good conductors of electricity

• They tend to lose electrons easily

• They tend to gain electrons easily

• They have low ionization energies

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Which of these has the highest electronegativity?

• Ca

• Fe

• N

• Au

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