Q32 of 149 Page 192

How was it shown that an atom has a lot of empty space within it?

The most of the space in an atom is empty this can be seen from the Rutherford's alpha- particle scattering experiment as most of the alpha- particles passed straight through the gold foil without any deflection.


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30

Give the evidence for the existence of nucleus in an atom.

 31

What important information is furnished about the nucleus of an atom by the alpha particle scattering experiment of Rutherford?

 33

Why is an atom neutral inspite of the presence of charged particles in it?

 34

Which of the nuclear particles is present in the same fixed number in the atoms of any particular element?