Diphosphorus tetraiodide, P2I4
The chemical formula for silicon tetraiodide is SiI4 .
Phosphorus tetra chloride
Phosphorus stays in tetra atom form in its elemental state and its formula is P4
Formula: P4
This compound very probable doesn't exist; PCl3 is the chemical formula of phosphorus trichloride.
The compound is tetraphosphorus trisulfide.
P4S3
The prefix tri- means 3 and the prefix tetra- means 4. The prefix is the subscript number for the element in the compound. So the formula for triphosphorus tetrabromide is P3Br4.
Krypton tetra Fluoride
It is a inorganic chemical compound , containing 4(tetra) phosphorus and 6(hexa) sulphurs.
SiF4 is the formula. The compound is Silicon tetra-fluoride Si and 4F.
tetra means four, so four