This compound is improbable.
S2Br5-----di means 2, penta means 5
Tetranitrogen hexahydride
It is a compound, not an element. N4Se4 is tetranitrogen tetraselenide
Tetranitrogen tetraselenide is the name of the compound.
covalent
The chemical formula for nitrogen difluoride is NF2.
S2Br5-----di means 2, penta means 5
Phosphorus difluoride
ClF2P is the formula for Phosphorus difluoride monochoride
XeF2
Aluminum Difluoride :)
OF2 is oxygen difluoride, a very powerful oxidizer.
The prefix "tetra-" means 4, so the formula is N4O4.
S4N4 is the chemical formula of tetrasulfur tetranitride.
Formula: O2F2
KrF2 is the chemical formula of krypton difluoride.
The chemical formula for disulfur difluoride is S2F2.