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wolverine [178]
3 years ago
13

Why are there two fluoride ions in magnesium fluoride but only one fluoride ion in lithium fluoride

Physics
2 answers:
Serjik [45]3 years ago
6 0

Answer:

Idk

Explanation:

postnew [5]3 years ago
5 0
This would be more of a chemistry question. Remember magnesium has a charge of 2+, and would need to hand off its two extra electrons. Fluorine can only take one electron at a time, so there needs to be two fluorines to take one magnesium's 2 electrons. 

With lithium, it has a +1 charge, so it has one extra electron, which it can hand off to just 1 fluorine atom. 

Another way of looking at this is: Mg^{2+} + 2F^{-} = MgF2  (the charges must balance out to zero)

Li^{+} + F^{-} = LiF (the charges balance out to zero)
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Explanation:

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To solve this problem, we use the expression below:

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