Bk Ch 1 Discovery Of The Atom Quiz

15 Questions | By Bmsscience | Last updated: Mar 4, 2013 | Total Attempts: 93

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1.

Greek philosopher, namely Democritis, devised a theory that all matter is made of atoms.
- A.
  
  True
- B.
  
  False
2.

JJ Thompson combined the idea of elements with the Greek theory that Democitris came up with. It was called the Atomic Theory.
- A.
  
  True
- B.
  
  False
3.

The Atomic Theory stated that 1) Matter is made of molecules.
- A.
  
  True
- B.
  
  False
4.

The Atomic Theory stated that 2) Atoms can be divided into smaller pieces.
- A.
  
  True
- B.
  
  False
5.

The Atomic Theory stated that 3) All atoms of an element are exactly alike.
- A.
  
  True
- B.
  
  False
6.

The Atomic Theory stated that 4). Different elements are made of different atoms.
- A.
  
  True
- B.
  
  False
7.

William Crookes used a cathode-ray tube which made a greenish glow. Crookes at first thought it was something supernatural and then was convinced it was charged particles.
- A.
  
  True
- B.
  
  False
8.

JJ Thompson revised Crookes experiment and used a magnet to attract the greenish glow. He discovered that there were neutral charges in an atom.
- A.
  
  True
- B.
  
  False
9.

JJ Thompson revised Dalton's model of the atom. Thompson's model looked like a sphere that was postively charged with negatively charged particles spread throughout.
- A.
  
  True
- B.
  
  False
10.

Earnest Rutherford tested Thompson's model and found that it was inaccurate.
- A.
  
  True
- B.
  
  False
11.

Rutherford's experiment proved that there was a small nucleus in the atom and that most of the atom was empty space.
- A.
  
  True
- B.
  
  False
12.

After Rutherfords experiment, other scientists discovered that there must be electrons in the atom also because an atom's mass equalled more than just the mass of the protons.
- A.
  
  True
- B.
  
  False
13.

Thompson was well known for trying to prove the existance of supernatural beings.
- A.
  
  True
- B.
  
  False
14.

The current model of the atom was created by Neils Bohr.
- A.
  
  True
- B.
  
  False
15.

The current model of an atom has an electron cloud surrounding the nucleus.
- A.
  
  True
- B.
  
  False