history of the atom Flashcards
1
Q
plum pudding model
A
positive sphere with negativly chagred electorns embeded
2
Q
thompson discovery
A
discovered the electron
3
Q
1808
A
atomic theory
4
Q
1875
A
Cathode rays
4
Q
1897
A
Electron
5
Q
1909
A
Nucleus
6
Q
1932
A
neutron
7
Q
Who?
mass of electron
A
Robert Milikan
8
Q
1917
A
proton
9
Q
electron mass
A
1/1838
10
Q
proton mass
A
1
11
Q
electron
A
-1
