amphoteric
sulphate ion is not amphoteric because according to Bronsted-Lowry concept an amphoteric specie is that which can donate as well as accept aproton but sulphate ion is not capable of donating proton so it is not amphoteric
Yes. The ammonium ion is weakly acidic.
It is called the Sulphide ion
The charge that sulphide has will depend in its state. Sulphide in itself does not have any charge but sulphide ion has a negative charge.
An example would be water which can gain a proton to form the hydroxonium ion (acting as a base) or donate a proton forming the hydroxide ion (acting as an acid). An acid is a proton donor; a base is a proton acceptor.
S2-
Sulphur
Amphoteric is a chemical entity (ion or molecule) which can react as an acid but also as a base. Compounds of beryllium, tin, aluminium, lead, zinc have amphoteric hydroxides and oxides.
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
-2 is the most common charge (sulphide ion).
it is S2- ,while sulphite ion is SO32-