Multiple Choice
Which compound contains both ionic and covalent bonding?
10. Chemical Bonding
Ionic Bonding
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Which statement best explains why sodium bromide is classified as an ionic compound?
A
Sodium and bromine form a metallic lattice with delocalized electrons.
B
Sodium and bromine share electrons equally to form a nonpolar covalent bond.
C
Sodium transfers an electron to bromine, forming and that are held together by electrostatic attraction.
D
Sodium bromide consists of discrete molecules held together by hydrogen bonding.
Verified step by step guidance1
Identify the types of elements involved: Sodium (Na) is a metal and bromine (Br) is a nonmetal. Ionic compounds typically form between metals and nonmetals.
Recall that ionic bonding involves the transfer of electrons from one atom to another, resulting in the formation of charged ions (cations and anions).
Understand that sodium tends to lose one electron to achieve a stable electron configuration, becoming a positively charged ion (Na\textsuperscript{+}).
Recognize that bromine tends to gain one electron to complete its valence shell, becoming a negatively charged ion (Br\textsuperscript{−}).
Conclude that the electrostatic attraction between the positively charged sodium ion and the negatively charged bromide ion forms the ionic bond in sodium bromide.
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