Multiple Choice
Which statement accurately describes covalent bonds?
11. Bonding & Molecular Structure
Chemical Bonds
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Which of the following occurs when a covalent bond forms?
A
Atoms gain electrons to form negative ions.
B
Atoms lose electrons to form positive ions.
C
Electrons are transferred from one atom to another.
D
Electrons are shared between atoms.
Verified step by step guidance1
Understand the nature of covalent bonds: Covalent bonds involve the sharing of electrons between atoms, rather than transferring electrons as in ionic bonds.
Recognize the difference between ionic and covalent bonding: Ionic bonds form when electrons are transferred from one atom to another, resulting in positive and negative ions. Covalent bonds form when atoms share electrons to achieve a stable electron configuration.
Identify the key characteristic of covalent bonds: In covalent bonding, atoms share pairs of electrons to fill their outer electron shells, achieving a stable configuration similar to noble gases.
Consider examples of covalent bonds: Common examples include the bonds in molecules like H₂O (water) and CO₂ (carbon dioxide), where atoms share electrons to form stable molecules.
Review the options given in the problem: The correct answer is that electrons are shared between atoms, which is the defining feature of covalent bonds.
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