Historic People (1)

Question 1

Willhelm Conrad Roentgen

Answer 1

Discovered X-Rays while studying cathode rays from a vacuum tube, saw a light coming from a fluorescent screen, knew that visible light wasn’t responsible, theorized that invisible rays were the reason, named them X-Rays.

Question 2

Antoine Henri Becquerel

Answer 2

Found that Uranium was Radioactive.

Lead to SI unit for radioactivity: the becquerel (Bq).

Question 3

Marie + Pierre Curie

Answer 3

Discovered Radium and Polonium.

Marie Coined the term “Radioactivity”.

Curie as the basic unit of Radioactivity