Quiz this monday kill me

Question 1

The electron is discovered using a

Answer 1

cathode-ray tube.

Question 2

What are the two charged plates of the cathode-ray tube?

Answer 2

cathode and anode.

Question 3

used the cathode ray tube, and the electromagnetic theory to determine the ratio of electric charge to the mass of the individual negatively charged particle

Answer 3

Joseph John Thomson

Question 4

Since the cathode ray is attracted to the positively-charged plate and repelled by the negatively-charged plate, it must consist of negatively-charged particles.

This negatively charged particle was called…?

Answer 4

electron

Question 5

was able to quantify the charge of the electron in his oil-drop experiment in 1906.

Answer 5

Robert Millikan

Question 6

In Millikan’s experiment, he used a

Answer 6

fine spray of ionized oil

Question 7

During the early 1900s, two features of atoms had become clear.

Answer 7

Atoms contain electrons.
Atoms are electrically neutral.

Question 8

decided to use alpha particles to probe the structure of the atoms, together with his associate Hans Geiger and an undergraduate named Ernest Maden.

Answer 8

Ernest Rutherford

Question 9

The positively charged particles in the nucleus are called

Answer 9

Protons