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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.

The average mass of an atom of an element is known as

  Atomic Number

  Isotope

  Atomic Mass

  Molecular Weight

  Half-n-half Clue
 

2.

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

  Molecular Weight

  Atomic Number

  Isotope Number

  Mass Number

  Half-n-half Clue
 

3.

The particle discovered in the anode ray experiments is the

  neutron

  proton

  electron

  meson

  Half-n-half Clue
 

4.

Neutrons are

  positively-charged particles with negligible mass.

  negatively-charged particles with negligible mass.

  positively-charged particles with mass.

  neutral particles with mass.

  Half-n-half Clue
 

5.

The smallest particle of an element which can take part in chemical reactions and may or may not exist independently is the

  nucleus

  compound

  neutron

  atom

  Half-n-half Clue
 

6.

The charge on the electron was discovered by

  Fermi

  J. J. Thomson

  Mullikan

  Faraday

  Half-n-half Clue
 

7.

The alpha particle scattering experiment was carried out by

  J. Chadwick

  E. Rutherford

  J. J. Thomson

  E. Goldstein

  Half-n-half Clue
 


 
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