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

  Molecular Weight

  Mass Number

  Atomic Number

  Isotope Number

  Half-n-half Clue
 

2.

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

  the center of the atom has a negative charge.

  most of the atom is empty.

  atomic mass is spread over the whole atom.

  the center of the atom is empty.

  Half-n-half Clue
 

3.

Anode rays were discovered by

  J. Chadwick

  E. Goldstein

  E. Rutherford

  J. J. Thomson

  Half-n-half Clue
 

4.

The three fundamental particles of the atom are

  Nucleus, Anti-quarks and Electrons

  Mesons, Quarks and Anti-neutrino

  Positron, Neutrino and Gamma Rays

  Proton, Neutron and Electron

  Half-n-half Clue
 

5.

Electrons are

  negatively-charged particles with mass.

  positively-charged particles with mass.

  positively-charged particles with negligible mass.

  negatively-charged particles with negligible mass.

  Half-n-half Clue
 

6.

The currently accepted model of the atom is that of

  Bohr

  de Broglie

  Rutherford

  Heisenberg

  Half-n-half Clue
 

7.

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

  Atomic Mass

  Atomic Number

  Isotope

  Molecular Weight

  Half-n-half Clue
 


 
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