Solute is a substance that dissolves in a solvent in order to form a solution. Solutes can be in liquid, gaseous or solid phase. Normally, in a solution, solutes are in a lesser amount than the solvents. When a solution has the maximum amount of solutes it can dissolve, then the solution is said to be saturated.
The answer is 72973739373
It was a Cambridge UK scientist in the early part of the 20 th century who discovered the electron. His name was J J Thompson.