Atom History Flashcards
1
Q
Who proposed the ‘plum pudding’ model, and after the discovery of what?
A
Thomson, after the discovery of electrons.
2
Q
Who experimented with alpha particles?
A
Geiger and Marsden.
3
Q
Who proposed the nuclear model?
A
Rutherford.
4
Q
What happens in the nuclear model?
A
- Electrons orbit around the nucleus.
- The nucleus contains protons.
5
Q
Who proposed that electrons orbit in shells/energy levels?
A
Bohr.
6
Q
Who discovered the existence of uncharged particles known as neutrons?
A
Chadwick.
