Multiple Choice
How is a polar covalent bond different from a nonpolar covalent bond?
11. Bonding & Molecular Structure
Chemical Bonds
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes what happens in covalent bonding?
A
Atoms transfer electrons to achieve a full outer shell.
B
Atoms share electrons to achieve a full outer shell.
C
Atoms gain electrons to form negative ions.
D
Atoms lose electrons to form positive ions.
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 shell, typically aiming for the electron configuration of a noble gas.
Identify the key difference between covalent and ionic bonding: In covalent bonding, electrons are shared, whereas in ionic bonding, electrons are transferred from one atom to another, resulting in the formation of ions.
Recognize 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 the electron sharing: Consider a simple molecule like
, where two hydrogen atoms share their single electrons to form a covalent bond, achieving a stable electron configuration.
Apply this understanding to the given options: The correct description of covalent bonding is 'Atoms share electrons to achieve a full outer shell,' distinguishing it from other processes like electron transfer or ion formation.
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