Multiple Choice
Which of the following best describes the difference between ionic and covalent bonds?
11. Bonding & Molecular Structure
Chemical Bonds
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What happens to the electrons during covalent bonding?
A
Electrons are lost by both atoms.
B
Electrons are shared between atoms.
C
Electrons are gained by both atoms.
D
Electrons are transferred from one atom to another.
Verified step by step guidance1
Understand the concept of covalent bonding: Covalent bonding involves the sharing of electrons between atoms to achieve a full outer electron shell, typically following the octet rule.
Identify the types of atoms involved: Covalent bonds usually form between nonmetal atoms, which have similar electronegativities and a tendency to share electrons rather than transfer them.
Visualize electron sharing: In a covalent bond, each atom contributes one or more electrons to form a shared pair, creating a stable electron configuration for both atoms.
Distinguish from other types of bonding: Unlike ionic bonding, where electrons are transferred from one atom to another, covalent bonding involves sharing electrons without any loss or gain.
Apply the concept to molecular structures: Recognize that molecules like H₂O, CO₂, and CH₄ are formed through covalent bonds, where atoms share electrons to form stable compounds.
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