Asubstance that forms hydroxide ions in a water solution is a base true or false

According to Arrhenius definition of acid bases: An acid donates ions in aqueous solution and a base donates hydroxide ions in aqueous solution.

So the given statement that a substance that forms hydroxide ions in aquoeus solution is true.

Example of a base giving hydroxide ions in water:

b) nuclear ive learned that in a pedtrodic table