Electronegativity

Based on the data in the table above, which of the following correctly predicts the relative electronegativity of the elements X, Y, and Z, and provides the correct reason?

• X > Y > Z because smaller elements have a stronger coulombic attraction between the nucleus and valence electrons

• X > Y > Z because smaller elements have a weaker coulombic attraction between the nucleus and valence electrons

• Z > Y > Z because larger elements have a stronger coulombic attraction between the nucleus and valence electrons

• Z > Y > Z because larger elements have a stronger coulombic attraction between the nucleus and valence electrons

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Which of the following correctly identifies which has the higher electronegativity, Sn or Te, and supplies the best justification?

• Sn, because of its higher nuclear charge

• Sn, because of the closer distance between nucleus and bonded electrons

• Te, because of its higher nuclear charge

• Te, because of the closer distance between nucleus and bonded electrons

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Based on periodic trends and the data in the table above, which of the following are the most probable values of ionization energy and electronegativity for rubidium?

• 403 kJ/mol, 0.82 D

• 403 kJ/mol, 1.22 D

• 600 kJ/mol, 0.82 D

• 600 kJ/mol, 1.22 D

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The table above shows the number of protons, atomic radius, and the electronegativity of several elements. Which of the following best helps explain the deviation of the electronegativity of krypton from the overall trend?

• The atomic radius of krypton is smaller than the atomic radius of bromine.

• The atomic radius of krypton is smaller than the atomic radius of bromine.

• There is repulsion between the electrons in krypton’s valence shell.

• The valence shell in krypton is full meaning it is unreactive.

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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

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The figure above shows the different types of bonds that could result when two atoms are bonded. What kind of bond would be formed between an atom of H and an atom of F?

• Metallic

• Ionic

• Covalent

• Polar Covalent

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