객관식
Which of the following is formed when two atoms combine through a chemical interaction?
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11. Bonding & Molecular Structure
Chemical Bonds
객관식
Which of the following best explains how two oxygen atoms bond together to form an O2 molecule?
A
One oxygen atom donates electrons to the other, forming an ionic bond.
B
They form a metallic bond by pooling their valence electrons.
C
They share two pairs of electrons to form a double covalent bond.
D
They share one pair of electrons to form a single covalent bond.
검증된 단계별 안내1
Step 1: Understand the types of chemical bonds. Ionic bonds form when one atom donates electrons to another, resulting in charged ions. Covalent bonds form when atoms share electrons. Metallic bonds involve a 'sea' of shared electrons among many atoms.
Step 2: Consider the nature of oxygen atoms. Oxygen is a nonmetal with six valence electrons and tends to achieve a full octet by sharing electrons rather than donating or pooling them like metals.
Step 3: Analyze the bonding in O2. Two oxygen atoms each need two more electrons to complete their octet, so they share two pairs of electrons between them.
Step 4: Recognize that sharing two pairs of electrons corresponds to a double covalent bond, which is stronger and shorter than a single covalent bond.
Step 5: Conclude that the best explanation is that two oxygen atoms share two pairs of electrons to form a double covalent bond, resulting in the O2 molecule.
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