객관식
Which of the following elements typically forms cations?
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2. Atoms & Elements
Ions
Multiple Choice
In the formula NaCl, how many Cl^- ions are present for each Na^+ ion?
A
4
B
2
C
0.5
D
1
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검증된 단계별 안내1
Identify the chemical formula given: NaCl.
Understand that the formula NaCl represents one sodium ion (Na^+) and one chloride ion (Cl^-) combined in a 1:1 ratio to form a neutral compound.
Recall that ionic compounds are electrically neutral, so the total positive charge must balance the total negative charge.
Since Na^+ has a charge of +1 and Cl^- has a charge of -1, one Na^+ ion pairs with one Cl^- ion to balance the charges.
Therefore, for each Na^+ ion, there is exactly one Cl^- ion present in the compound.
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