객관식
Which of the following statements best describes the behavior of electrons in a covalent bond?
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11. Bonding & Molecular Structure
Chemical Bonds
객관식
Which type of chemical bond results from the unequal sharing of electrons between hydrogen and oxygen in a water molecule?
A
Ionic bond
B
Metallic bond
C
Nonpolar covalent bond
D
Polar covalent bond
검증된 단계별 안내1
Understand the types of chemical bonds: Ionic bonds form when electrons are transferred from one atom to another, metallic bonds involve a 'sea' of shared electrons among metal atoms, and covalent bonds involve the sharing of electrons between atoms.
Recognize that in a water molecule (H\_2O), hydrogen and oxygen atoms share electrons rather than transfer them completely, so the bond is covalent rather than ionic.
Consider the electronegativity values: oxygen is more electronegative than hydrogen, meaning oxygen attracts the shared electrons more strongly.
Because the electrons are shared unequally, the bond has a partial positive charge on hydrogen and a partial negative charge on oxygen, creating a dipole moment.
This unequal sharing of electrons in a covalent bond is called a polar covalent bond, which is the type of bond present in water molecules.
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