Multiple Choice
Which of the following best describes how atoms bond to form molecules?
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11. Bonding & Molecular Structure
Chemical Bonds
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In a molecule of I2, how many electrons are shared between the two iodine atoms?
A
4
B
2
C
6
D
8
Verified step by step guidance1
Recall that a covalent bond between two atoms involves the sharing of electron pairs.
Identify the type of bond between the two iodine atoms in an I2 molecule. Since it is a diatomic molecule of the same element, the bond is a single covalent bond.
Understand that a single covalent bond consists of one pair of shared electrons, which means 2 electrons are shared between the atoms.
Recognize that each iodine atom contributes one electron to the shared pair, completing the bond.
Conclude that the number of electrons shared between the two iodine atoms in I2 is 2.
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