The Atomic Theory

Want to read the rest of this paper? Join Essayworld today to view this entire essay and over 50,000 other term papers

of the atomic theory, was born in
1906. Thomson won the Nobel Prize in physics (1906) for his work in the conduction of electricty through gases.
He discovered the electron by using cathode rays. An electron is the smallest particle of an atom, the charge on
an electron is negative.
Ernest Rutherford, who was born in 1871 identified the three main components of radioactivity: alpha,
beta, and gamma particles. Radioactivity was discovered by a French scientist named Becquerel. Rutherford
was also the first one to disdcover the true structure of an atom. An atom has a central heavy nucleus with an
electron cloud surrounding it. Ernest was also the credited with the first man made nuclear reaction. This
accomplishment came in 1919.
A colleague of Rutherford's at Cambridge University named James Chadwick discovered the third
fundamental particle that makes up the atom: the neutron. This important discovery led to the making of the first
atom bomb and to the ...

Get instant access to over 50,000 essays. Write better papers. Get better grades. Already a member? Login

CITE THIS PAGE: