QQuestionChemistry
QuestionChemistry
Iron bromide is ionic. What is the charge on the bromide ion?
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Answer
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Step 1: Recall that iron bromide is an ionic compound, which means it is composed of ions.
The charge on the iron ion can be determined by the group number in the periodic table. Iron is in group 8, so it has a charge of + 2 (since helium has a full outer shell of electrons, iron tends to lose two electrons to achieve a stable configuration).
Step 2: In ionic compounds, the overall charge must be zero.
Therefore, the charge on the bromide ion must balance the charge on the iron ion. Since the iron ion has a charge of + 2, the bromide ion must have a charge of - 2 to balance the positive charge.
Final Answer
The charge on the bromide ion is - 2.
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