History Of Atom Flashcards
Which scientist said matter is made from atoms?
Democritus
Which scientist said opposite charges attract?
Charles- Augustin de Coulomb
Which scientist said atoms of 1 element are the same?
John Dalton
Which scientist came up with the plum pudding model?
J.J Thomson
What is the plum pudding model?
Electrons are raisins inside a positively charged pudding
What did Ernest Ruthford say?
The atom must be made from a very dense positive center
Most of the atom must be empty space
What did Niels Bohr say?
Every atom had specifc numbers of electron shells
Which scientist said you can never know the location and energy of an electron?
Werner Heisenberg
Which scientist said atoms have a nucleus with protons and neutrons?
James Chadwick
Who published the gold foil experiment?
Ernest Ruthford
