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Fluorine (F 2 ) reacts with magnesium (Mg) to produce magnesium fluoride (MgF 2 ). Which element will react with fluorine in the same 1:2 ratio to produce an ionic compound?

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aachen

Magnesium and fluorine reacts in 1:2 ratio because:

  • Magnesium (Mg) has 2 valance electrons.
  • Fluorine (F) is a halogen and thus, requires only one electron.
  • 1 atom of magnesium reacts with 2 atoms of fluorine to form a ionic compound with ionic bond.

Calcium belongs to the same group as Magnesium, and also has 2 valance electrons. Thus, it can also react with Fluorine in the same manner.

Hence, the answer is Calcium.

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