SnF2 is stannous- or tin(II) fluoride
SnF2
Formula: SnF2
The chemical formula of stannous fluoride is SnF2. The structural formula of stannous fluoride shows the arrangement of atoms, with an Sn atom in the center surrounded by two F atoms. It can be represented as Sn-F-F.
SnF2 and NaF
Calcium difluoride; Fluorspar; Acid spar the chemical formula is CaF2 (source: http://www.jtbaker.com/msds/englishhtml/c0374.htm)
Stannous means the +2 valence state for tin (it's actually antiquated; it's better just to say Sn(II)). So, the formula must be SnF2.
The chemical formula for stannous arsenide is Sn3As2.
Formula: SnF2
It is an Ionic Compound (also referring to an metal forming with multiple ions). The following in "common name" is SnF2= Stannous Flouride and in IUPAC form SnF2= Tin (II) Flouride
The Chemical Formula for Cadmium Fluoride is CdF2.
Some chemicals added to prevent tooth decay are: sodium fluoride, potassium fluoride, stannous fluoride, sodium fluoride phosphate, etc.
The chemical formula of ammonium fluoride is NH4F.