HgF2
The formula for Mercury II fluoride is HgF2. Mercury (II) has a charge of +2 and fluoride has a charge of -1, so you need two fluoride ions to balance the charge of one mercury ion.
The compound Hg2F2 is called mercury(I) fluoride. The compound HgF2 is called mercury(II) fluoride.
The formula given is for mercury (I) fluoride, also known as mercurous fluoride.
Copper II fluoride is CuF2
The compound Hg2F2 is called mercury(I) fluoride. The compound HgF2 is called mercury(II) fluoride.
The copper(II) fluoride has the formula CuF2.
The formula for Iron(II) Fluoride is FeF2.
It is NiF2NiFl2
The compound name for Hg2F3 is mercury(II) fluoride.
Copper II fluoride is CuF2
That would be Mercury(II) fluoride. Idiot.
The chemical name of Hg2SO3 is mercury(I) sulfite.