Unit 2- Scientists Flashcards
1
Q
What experiment did Thomson conduct?
A
Cathode ray tube
2
Q
Who discovered the nucleus?
A
Ernest Rutherford
3
Q
Was Dalton’s theory entirely correct?
A
No, but it almost was. All atoms of the same element actually don’t have the exact same mass. It varies slightly.
4
Q
What did Millikan’s oil drop experiment achieve?
A
We could finally accurately measure the charge of an electron.
5
Q
What model did Rutherford design?
A
Orbital
6
Q
Who discovered the electron?
A
J.J. Thompson
7
Q
What was included in Dalton’s atomic theory?
A
- Everything is made of atoms, and they can’t be created or destroyed. 2. All atoms of the same element have the same mass 3. Atoms join together to make compounds, and a given compound always consists of the same proportions
8
Q
What model did Thomson design?
A
Plum pudding
9
Q
What was discovered with Rutherford’s gold foil experiment?
A
Nucleus
