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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 has a negative charge.

  atomic mass is spread over the whole atom.

  most of the atom is empty.

  the center of the atom is empty.

  Half-n-half Clue
 

2.

Anode rays were discovered by

  J. Chadwick

  E. Goldstein

  E. Rutherford

  J. J. Thomson

  Half-n-half Clue
 

3.

According to Rutherford,

  the nucleus revolves around the electrons.

  the electrons revolve around the nucleus.

  the neutrons revolve around the nucleus.

  the protons revolves around the nucleus.

  Half-n-half Clue
 

4.

The charge by mass ratio for electrons of various elements

  is the same.

  increases with increase in atomic mass.

  decreases with increase in atomic mass.

  increases with increase in atomic number.

  Half-n-half Clue
 

5.

Atoms of an element with the same number of protons but different number of neutrons in the nucleus are known as

  Isobars

  Twin Atoms

  Isotopes

  Isosters

  Half-n-half Clue
 

6.

The charge on the electron was discovered by

  J. J. Thomson

  Faraday

  Mullikan

  Fermi

  Half-n-half Clue
 

7.

Protons are

  neutral particles with mass.

  positively-charged particles with mass.

  positively-charged particles with negligible mass.

  negatively-charged particles with negligible mass.

  Half-n-half Clue
 


 
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