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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 charge by mass ratio for electrons of various elements

  increases with increase in atomic mass.

  increases with increase in atomic number.

  is the same.

  decreases with increase in atomic mass.

  Half-n-half Clue
 

2.

The currently accepted model of the atom is that of

  Heisenberg

  Bohr

  de Broglie

  Rutherford

  Half-n-half Clue
 

3.

According to Rutherford,

  the electrons revolve around the nucleus.

  the neutrons revolve around the nucleus.

  the nucleus revolves around the electrons.

  the protons revolves around the nucleus.

  Half-n-half Clue
 

4.

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

  Mass Number

  Proton Number

  Atomic Weight

  Atomic Number

  Half-n-half Clue
 

5.

The alpha particle scattering experiment was carried out by

  E. Goldstein

  J. Chadwick

  J. J. Thomson

  E. Rutherford

  Half-n-half Clue
 

6.

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

  Isobars

  Isotopes

  Twin Atoms

  Isosters

  Half-n-half Clue
 

7.

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

  25%

  75%

  Negligible

  50%

  Half-n-half Clue
 


 
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