When magnesium reacts with fluorine metal is forms a compound known as magnesium fluoride.
The names of the elements that make up the compound will be determined from the atomic mass of the elements.
The element that atomic number of 12 is magnesium and it has oxidation number of +2.
The element that atomic number of 9 is fluorine and it has oxidation number of -1.
Mg²⁺ + F⁻ --------> MgF₂
Thus, when magnesium reacts with fluorine metal is forms a compound known as magnesium fluoride.
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