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Which of the following best describes a hydrogen ion?
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- 1. Intro to General Chemistry4h 5m
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2. Atoms & Elements
Ions
Scelta multipla
Which of the following ions has a negative charge?
A
Mg^{2+}
B
Na^+
C
K^+
D
Cl^-
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Guida verificata passo dopo passo1
Identify the charge on each ion by looking at the superscript notation: Mg^{2+} has a 2+ charge, Na^{+} has a 1+ charge, and K^{+} has a 1+ charge.
Recall that ions with a positive charge are called cations, and ions with a negative charge are called anions.
Since Mg^{2+}, Na^{+}, and K^{+} all have positive charges, none of these ions are negatively charged.
Recognize that Cl^{-} has a negative charge, indicated by the superscript minus sign, making it an anion.
Therefore, among the given options, Cl^{-} is the ion with a negative charge.
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