Developing the Model of the Atom Flashcards
1
Q
What did Rutherford to the plum pudding model?
A
He replaced it with the Nuclear Model
2
Q
What did J J Thompson discover?
A
Particles called electrons
3
Q
What did John Dolton discover?
A
That matter was made up of tiny spheres
4
Q
What experiment did Rutherford undertake?
A
He fired alpha particles at a thin sheet of gold
5
Q
What did Rutherford learn from his experiment?
A
That atoms have a nucleus with a positive charge
6
Q
Niels Bohr discover?
A
That electrons orbit the nucleus at certain distances called energy levels
