For the symbol `H^(-),D` and T tabulate three sub atomic particles found in each of them.

Explanation

`|{:("Symbol","Name of Isotope","No. of Protons","No. of Electrons","No. of Neutrons"),(._(1)^(1)H,"Hydrogen","1","1","0"),(._(1)^(2)D,"Deuterium","1","1","1"),(._(1)^(3)T,"Tritium","1","1","2"):}|`