Chemical Bonding Quiz

What is a chemical bond?

• A mutual electrical attraction between the protons and electrons of different atoms

• A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together

• A sharing of electron pairs between atoms without any electrical attraction

• A permanent transfer of electrons from one atom to another

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What results from the sharing of electron pairs between two atoms in covalent bonding?

• A Nonpolar Covalent Bond

• A Polar Covalent Bond

• Both A and B

• Neither A nor B

What characterizes an ionic bond?

• Sharing of electron pairs between two atoms

• Electrical attraction between small numbers of cations and anions

• Electrical attraction between large numbers of cations and anions

• Equal sharing of electrons between bonded atoms

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What is the percent ionic character of a bond with an electronegativity difference greater than 1.7?

• Less than 5%

• Between 5% and 50%

• Greater than 50%

• Exactly 50%

Which type of bond has an electronegativity difference of 0.3 or less?

• Ionic

• Polar Covalent

• Nonpolar Covalent

• Metallic

According to the electronegativity values shown, which element has the highest electronegativity?

• Fluorine (F)

• Chlorine (Cl)

• Bromine (Br)

• Iodine (I)

What is the trend of electronegativity in the periodic table as shown in the image?

• 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

What are valence electrons?

• Electrons in the lowest occupied s and p energy level

• Electrons in the highest occupied s and p energy level

• Protons in the highest occupied s and p energy level

• Neutrons in the outermost shell

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What largely determines the chemical properties of an element?

• The number of protons

• The number of neutrons

• The number of valence electrons

• The atomic mass

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How can you find the number of valence electrons in a representative (group A) element?

• Look at its atomic number

• Look at its group number

• Look at its period number

• Look at its mass number

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