Chemistry 121 Chapter 2 Part 1

15 Questions | By Roadman19771 | Last updated: Mar 21, 2022 | Total Attempts: 109

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1.

_____________ gave the first serious thought to the thought "what is matter made of ?"
- A.
  
  The Greeks
- B.
  
  J.J. Thompson
- C.
  
  John Dalton
2.

Believed that elements were made of identical particles called atoms
- A.
  
  J.J. Thompson
- B.
  
  The Greeks
- C.
  
  John Dalton
3.

Believed that atoms of a given element are different from those of any other element
- A.
  
  J.J. Thompson
- B.
  
  John Dalton
- C.
  
  The Greeks
4.

Believed that atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same relative numbers of types of atoms.
- A.
  
  John Dalton
- B.
  
  J.J. Thompson
- C.
  
  The Greeks
5.

Believed that atoms cannot be created, divided into smaller particles, nor destroyed in any chemical process.
- A.
  
  The Greeks
- B.
  
  John Dalton
- C.
  
  J.J. Thompson
6.

During this time scientist strived to find out what atoms really looked like.
- A.
  
  17th Century
- B.
  
  19th Century
- C.
  
  18th Century
7.

The basic unit of any element that can enter into interaction with other elements in a chemical reaction
- A.
  
  Atom
- B.
  
  Proton
- C.
  
  Electron
8.

The basic unit of any element that can enter into interaction with other elements in a chemical reaction is called an atom. Another name for this is _______________
- A.
  
  Dalton's Law
- B.
  
  Thompson's Theory
- C.
  
  Atomic Theory
9.

J.J. Thompson discovered the _______________
- A.
  
  Atom
- B.
  
  Atomic Theory
- C.
  
  Electron
10.

J.J. Thompson discovered the electron in _________
- A.
  
  1906
- B.
  
  1891
- C.
  
  1902
11.

Thompson found that the cathode rays _______ under the influence of an electric field.
- A.
  
  Did bend
- B.
  
  Did not bend
12.

Thompson concluded the cathode rays were indeed made of particles which he called ___________
- A.
  
  Sub-elements
- B.
  
  Positive charges
- C.
  
  Corpuscles
13.

Corpuscles came from within the atoms of the electrodes themselves, meaning they were called __________________
- A.
  
  Protons
- B.
  
  Sub-atomic particles
- C.
  
  Neutrons
14.

Another name for sub-atomic particles is _____________________
- A.
  
  Electrons
- B.
  
  Neutrons
- C.
  
  Protons
15.

__________ orbit around the nucleus of an atom
- A.
  
  Protons
- B.
  
  Neutrons
- C.
  
  Electrons