Chapter 4 Physical Science Short Test
10 Questions
| Total Attempts: 270
You need to answer each? To the best of ur ability.
Questions and Answers
- 1.One of the first people to state that matter is made up of atoms was
- A.
Democritus
- B.
Aristotle
- C.
Dalton
- D.
Rutherford
- 2.Dalton's model of an atom is best described as
- A.
A solar system
- B.
A solid sphere
- C.
A plum pudding
- D.
An electron cloud
- 3.Who provided the first evidence that atoms contain subatomic particles?
- A.
Dalton
- B.
Rutherford
- C.
Thomson
- D.
Bohr
- 4.Almost all mass of an atom is located in its
- A.
Protons
- B.
Electrons
- C.
Electron cloud
- D.
Nucleus
- 5.Which particle is the least massive?
- A.
Proton
- B.
Electron
- C.
Neutron
- D.
Nucleus
- 6.All atoms of an element have the same
- A.
Mass #
- B.
# of isotopes
- C.
Atomic #
- D.
# of neutrons
- 7.Why must indirect evidence be used to study the structure of atoms?
- 8.In Thomson's experiment, why was the glowing beam repelled by a negatively charged plate?
- 9.What is the difference between the atomic # and mass #?
- 10.What does it mean to say that an atom is in an excited state?
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