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Question
Assertion :Only one in 12000 of alpha particles deflected in Rutherford's experiment. Reason: Most of the space in the atom is empty.
Assertion :Only one in 12000 of alpha particles deflected in Rutherford's experiment. Reason: Most of the space in the atom is empty.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Since most of the alpha-particle went straight through the metal foil undeflected, it means that there must be a very large empty space within the atom.Since few of the alpha-particles were deflected from their original path through moderate angles; it was concluded that the whole of the +ve charge is concentrated and the space occupied by this positive charge is very small in the atom.Whenever alpha-particles come closer to this point, they suffer a force of repulsion and deviate from their paths.The positively charged heavy mass which occupies only a small volume in an atom is called the nucleus. It is supposed to be present at the center of the atom.
Hence, option A is correct.
Since most of the alpha-particle went straight through the metal foil undeflected, it means that there must be a very large empty space within the atom.
Since few of the alpha-particles were deflected from their original path through moderate angles; it was concluded that the whole of the +ve charge is concentrated and the space occupied by this positive charge is very small in the atom.
Whenever alpha-particles come closer to this point, they suffer a force of repulsion and deviate from their paths.
The positively charged heavy mass which occupies only a small volume in an atom is called the nucleus. It is supposed to be present at the center of the atom.
Hence, option A is correct.
Hence, option A is correct.
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