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Chemistry : Atom and Atomic Structure


Answer the following question(s) based on atom and atomic structure.

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Multiple choice

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1.

As a result of Rutherford's scattering experiment, it was concluded that

  most of the atom is empty.

  the center of the atom has a negative charge.

  the center of the atom is empty.

  atomic mass is spread over the whole atom.

  Half-n-half Clue
 

2.

The charge by mass ratio for electrons of various elements

  increases with increase in atomic mass.

  increases with increase in atomic number.

  decreases with increase in atomic mass.

  is the same.

  Half-n-half Clue
 

3.

According to Rutherford, the atom consists of the following two parts

  Electrons and Protons

  Protons and Neutrons

  Neutrons and Electrons

  Nucleus and the extra-nuclear part

  Half-n-half Clue
 

4.

The charge on the electron was discovered by

  Faraday

  J. J. Thomson

  Mullikan

  Fermi

  Half-n-half Clue
 

5.

The volume of the nucleus as compared to the volume of the atom is

  50%

  Negligible

  75%

  25%

  Half-n-half Clue
 

6.

Protons are

  negatively-charged particles with negligible mass.

  positively-charged particles with negligible mass.

  neutral particles with mass.

  positively-charged particles with mass.

  Half-n-half Clue
 

7.

The Atomic Theory was given by

  J. J. Thomson

  John Dalton

  E. Rutherford

  James Chadwick

  Half-n-half Clue
 


 
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