Cs3N
Formula = Cs3N
Cesium Nitride
The chemical name for the chemical formula Cs3N is caesium nitride.
The correct balanced formula for cesium oxide is Cs2O.
Formula: Hg3N2
Cs2S
The chemical formula for beryllium nitride is Be3N2.
The correct name for the formula Hg3N2 is trimercury dinitride.
Yes - that is correct.
yes.
The name phosphite is according to IUPAC reserved for PO33- ion, so Cesium phosphite would be Cs3PO3 However no compounds containing PO33- are known to exist. Hypothetical compounds containing it are often used in naming exercises by teachers/colleges/web sites. Phosphite in common use refers to HPO32- ion (IUPAC name phosphonate) and this is the formula taught in some parts of the world, cesium phosphite would therefore be Cs2HPO3
Cesium bromide. In a binary compound (2 constituent elements,) the non-metal becomes an "-ide" regardless of its normal name. So, oxygen becomes oxide, chlorine becomes chloride, nitrogen becomes nitride, etc...