Multiple Choice
How are ionic and covalent bonds different?
11. Bonding & Molecular Structure
Chemical Bonds
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How does a polar bond differ from a nonpolar bond?
A
A polar bond involves unequal sharing of electrons between atoms, while a nonpolar bond involves equal sharing.
B
A polar bond has a higher bond energy than a nonpolar bond.
C
A polar bond occurs between identical atoms, while a nonpolar bond occurs between different atoms.
D
A polar bond is formed between metals, while a nonpolar bond is formed between nonmetals.
Verified step by step guidance1
Begin by understanding the concept of electronegativity, which is the ability of an atom to attract electrons in a chemical bond. Different atoms have different electronegativities.
In a polar bond, the atoms involved have different electronegativities, leading to an unequal sharing of electrons. This results in a partial positive charge on one atom and a partial negative charge on the other.
In a nonpolar bond, the atoms involved have similar or identical electronegativities, leading to an equal sharing of electrons. This results in no charge separation across the bond.
Recognize that polar bonds typically occur between different types of atoms, often between a nonmetal and another nonmetal with differing electronegativities. Nonpolar bonds usually occur between identical atoms or atoms with similar electronegativities.
Understand that bond energy is not directly related to whether a bond is polar or nonpolar. Bond energy depends on various factors, including the types of atoms involved and the bond length.
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