describec Rutherford model of structure of atom with limitation
Answers
Rutherford model of structure of atom proposed that the positive charge is spread over a here in which the electrons are embedded to make the atom whole neutral.
Thomson in the form of first model pudding and is aIso known as Thomson's plum pudding model. This model was discarded as it was not consistent with the results of further investigations such as scattering of alpha-particles by thin metal foils.
- Most of the a-particles (nearly 99%) went straight without suffering any deflection.
- A few of them got deflected through small angles.
- A very few (about one in 20,000) did not pass through the foil at all but suffered large deflections (more than 90°) or even came back in more or less the direction from which they have come, i.e., a deflection of 180 .
- Since most of the a-particles went straight through the metal foil undeflccted, it means that there must be very large enpty space within the atom or the atom is extra ordinarily hollow.
- A few of the Alpha - particles were deflected from their original paths through moderate angles; it was concluded that whole of the positive charge is concentrated and the space occupied by this positive charge is very small in the atom.
- When 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 nucleus. It is supposed to be present at the centre of the atom.
A very few of the alpha-particles suffered strong on their path indicating that the nucleus rigid and a-particles recoil due to direct collision with the neavy positively charged mass.
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Answer:
Rutherford model of structure of atom proposed that the positive charge is spread over a here in which the electrons are embedded to make the atom whole neutral.
Thomson in the form of first model pudding and is aIso known as Thomson's plum pudding model. This model was discarded as it was not consistent with the results of further investigations such as scattering of alpha-particles by thin metal foils.
Most of the a-particles (nearly 99%) went straight without suffering any deflection.
A few of them got deflected through small angles.
A very few (about one in 20,000) did not pass through the foil at all but suffered large deflections (more than 90°) or even came back in more or less the direction from which they have come, i.e., a deflection of 180 .
Since most of the a-particles went straight through the metal foil undeflccted, it means that there must be very large enpty space within the atom or the atom is extra ordinarily hollow.
A few of the Alpha - particles were deflected from their original paths through moderate angles; it was concluded that whole of the positive charge is concentrated and the space occupied by this positive charge is very small in the atom.
When 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 nucleus. It is supposed to be present at the centre of the atom.
A very few of the alpha-particles suffered strong on their path indicating that the nucleus rigid and a-particles recoil due to direct collision with the neavy positively charged mass.
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