Names and inventor

Who discovered atom?

John Dalton

Who discovered electron?

J. J. Thomson

Who discovered nucleus of atom?

Ernest Rutherford

Who discovered proton?
Ernest Rutherford

Who discovered neutron?
James Chadwick

Who discovered X-Rays?
Wilhelm Conrad Roentgen

Who discovered Radium?
Pierre Curie and Marie Curie

Who discovered Polonium?
Marie Curie and Pierre

Who discovered Penicillin?
Alexander Fleming






Inventions

Who invented telescope?
Hans Lippershey

Who invented telephone?
Alexander Graham Bell

Who invented thermometer?
Galileo Galilei

Who invented nuclear Reactor?
Enrico Fermi

Who invented injection?
Francis Rynd

Who invented Bulb?
Thomas Edison


Please comment if you want me to add anything to the list and if any mistake has occurred, correct me.

Here is the list of TOP TEN SCIENTISTS
Also, read the blog  Discovery of PI and area of the circle.
Thank you.