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101
Greeks
The greeks called small particles-"Atomos".The greek word"Atomos" means invisible. -
John Dalton
John Dalton is born in Cockermouth. -
John Dalton
John Dalton comes up with the atomic theory with 5 main points: matter is made of atoms,atoms can't be divided into smaller pieces,all the atoms of an element are exactly alike,atoms are hard spheres that are the same,compounds are combination of elements. -
William Crookes
William Crookes is born in London -
John Dalton
John Dalton dies in Manchester. -
JJ Thompson
JJ Thompson is born in Cheetham Hill -
Ernest Rutherford
Ernest Rutherford is born in Brightwater. -
William Crookes
William Crookes creates the Cathode Ray Tube or CRT.He did experiments with glass and a vacuum tube and the glass tube had two metal pieces known as electrodes. -
Neils Bohr
Neils Bohr is born in Copenhagen. -
Werner Heisenberg
Werner Heisenberg is born in Wurzburg -
JJ Thomson
JJ Thomson creates the Plum pudding model which explains that atoms are composed of electrons surrounded with positive and negative charges of electrons. -
Ernest Rutherford
Ernest Rutherford theorizes that atoms are like the planets of the solar system and discovers the nucleus. -
Neils Bohr
He developes a model of an atom with a nucleus in the center and electrons in orbit around it. -
William Crookes
William Crookes dies in London -
Werner Heisenberg
Werner Heisenberg creates the isotope -
Ernest Rutherford
Ernest Rutherford dies in Cambrige -
JJ Thompson
JJ Thompson dies in Cambridge -
Neils Bohr
Neils Bohr dies in Copenhagen -
Werner Heisenberg
Werner Heisenberg dies in Munich