Chemistry 1.1.6 Flashcards
1
Q
What 3 key ideas did John Dalton present his Atomic Theory on in 1803? (3)
A
-Matter is made of Atoms, which cannot be created, destroyed, or divided.
-Atoms of the same Element are identical, and Atoms of different Elements are different.
-Different Atoms combine together to form new Substances.
2
Q
What Atom Model did J.J Thomson suggest in 1897?
A
The Plum Pudding Model.
3
Q
Who discovered the Electron in 1897?
A
J.J Thomson.
4
Q
What famous Experiment did Ernest Rutherford base his Atom Model on in 1909?
A
The gold foil experiment.
5
Q
What did Rutherford’s Atom Model include?
A
Space, Positively charged Nucleus, Electrons orbiting.
6
Q
What did the Bohr Model add?
A
Energy levels, Shells. Protons.
7
Q
Who discovered the Neutron?
A
James Chadwick.
