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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

Your Performance  

1.

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

  75%

  50%

  25%

  Negligible

  Half-n-half Clue
 

2.

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

  Isobars

  Isotopes

  Isosters

  Twin Atoms

  Half-n-half Clue
 

3.

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

  most of the atom is empty.

  the center of the atom is empty.

  the center of the atom has a negative charge.

  atomic mass is spread over the whole atom.

  Half-n-half Clue
 

4.

The charge by mass ratio for electrons of various elements

  increases with increase in atomic mass.

  decreases with increase in atomic mass.

  is the same.

  increases with increase in atomic number.

  Half-n-half Clue
 

5.

Neutron was discovered by

  E. Rutherford

  E. Goldstein

  John Dalton

  James Chadwick

  Half-n-half Clue
 

6.

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
 

7.

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

  Proton Number

  Atomic Weight

  Atomic Number

  Mass Number

  Half-n-half Clue
 


 
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