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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

  the center of the atom is empty.

  atomic mass is spread over the whole atom.

  most of the atom is empty.

  the center of the atom has a negative charge.

  Half-n-half Clue
 

2.

The number of protons present in the atom of an element is known as the

  Mass Number

  Atomic Weight

  Proton Number

  Atomic Number

  Half-n-half Clue
 

3.

Electrons are

  negatively-charged particles with negligible mass.

  positively-charged particles with mass.

  negatively-charged particles with mass.

  positively-charged particles with negligible mass.

  Half-n-half Clue
 

4.

The particle discovered in the anode ray experiments is the

  meson

  neutron

  electron

  proton

  Half-n-half Clue
 

5.

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

  Negligible

  50%

  25%

  75%

  Half-n-half Clue
 

6.

The particle discovered as a result of cathode ray experiments is the

  nucleus

  electron

  proton

  neutron

  Half-n-half Clue
 

7.

The sum of the numbers of the protons and neutrons in the atom of an element is known as

  Atomic Number

  Isotope Number

  Molecular Weight

  Mass Number

  Half-n-half Clue
 


 
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