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Multiple Choice
How do hydrogen atoms form a covalent bond?
A
By sharing a pair of electrons between them
B
By transferring electrons to each other
C
By gaining electrons from a metal
D
By losing electrons to a non-metal
Verified step by step guidance
1
Understand that a covalent bond is a type of chemical bond where two atoms share a pair of electrons.
Recognize that hydrogen atoms have one electron each and need one more to achieve a stable electron configuration similar to helium, which has two electrons.
Visualize two hydrogen atoms approaching each other. Each hydrogen atom contributes one electron to form a shared pair, creating a covalent bond.
Represent the covalent bond formation using a Lewis structure: H:H, where the colon represents the shared pair of electrons.
Conclude that the sharing of electrons allows each hydrogen atom to effectively have two electrons in its outer shell, achieving stability.