객관식
How is a neutral atom different from an ion?
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4. Atoms and Elements
Ions (Simplified)
Multiple Choice
In a typical ionic compound (e.g., sodium chloride), what is the net charge of the compound as a whole?
A
The net charge is .
B
The net charge is zero because the total positive charge equals the total negative charge.
C
The net charge is .
D
The net charge depends on the number of ions and is usually nonzero.
검증된 단계별 안내1
Recall that an ionic compound is formed by the combination of positive ions (cations) and negative ions (anions).
Understand that the charges of the cations and anions balance each other out to create a stable compound.
Recognize that the total positive charge contributed by the cations equals the total negative charge contributed by the anions.
Therefore, when these ions combine in the correct ratio, the overall net charge of the ionic compound is zero.
This neutrality is a fundamental property of ionic compounds, ensuring electrical neutrality in the compound as a whole.
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