AL3 plus and O2 negative will form Aluminum Oxide. It has many names such as corundum and alumina. It is an amphoteric oxide.
The formula of the compound containing Al3+ and S2- is Al2S3
trialuminum dioxide
Al2O3, aluminum oxide
Aluminum Oxide
Al2O3
PbS2
MgS --> Mg2+ and S2- -->Ionic Compounds
Example: potassium sulfide, K2SThis compound contain 2 potassium ions and 1 sulfide ion.
Ionic bond. A simple rule of thumb is metal reacts with non metal to produce an ionic compound. CaS has the same crystal structure as sodium chloride, this indicates that the bonding is highly ionic.
Sulfer is an element, only compounds can be ionic. For example, NaCl is an ionic compound- something that has a metal and a non-metal.
Al2S3====
The formula of lead sulfide is PbS.
PbS2
3S2- + 2Sc3+ --> Sc2S3name: Scandium sulfide
CaS
The formula for Cs and S2- is Cs2S
Zinc sulfide is the ionic compound with Zn2+ and S2- ions.
The barium ion has the formula Ba2+, and the Sulphide ion has the formula S2-. The formula for the formation of Barium Sulphide is: Ba + S --> BaSThe formula for Barium Sulphide is BaS
Al3+ + S2- ------------> Al2S3
MgS --> Mg2+ and S2- -->Ionic Compounds
Example: potassium sulfide, K2SThis compound contain 2 potassium ions and 1 sulfide ion.
Ferrous is the traditional name of the iron (II) ion. (Fe 2+) The formula for ferrous sulfide is FeS since sulfur has a charge of -2.