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Why in Rutherford alpha scattering twice as many particles are scattered through an angle between 60 degree to 90 degree as are scattered through angles of 90 degree or more?
Dimple6lamba
First of all I think that the phrase 'twice as many' is erroneous. A scattering through an angle of 90' or more is a rare event.
You must understand that an atom is mostly empty space. The effective area of the atomic nucleus is very small compared to the area maintained by the electrons. An alpha particle is scattered by 90' or more only when it makes a very close encounter with the atomic nucleus. As the probability of actually coming close to a nucleus is small, the resulting reactions is also small.
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∙ 14y ago
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What is neutron proton scattering?
Neutron-proton scattering refers to the interaction between a neutron and a proton. It involves the exchange of a virtual meson between the two particles, which allows them to interact through the strong nuclear force. Studying neutron-proton scattering can provide valuable information about the structure and interactions of the atomic nucleus.
If Rutherford made bombarded aluminum foil with alpha particles instead of gold foil what observations would he have used?
The scattering angles would have changed, but the qualitative results would also change: the reason Rutherford chose gold was because it is EXTREMELY malleable. One can stretch gold foil until it is only a few atoms thick in places, which is not possible with aluminum. If the foil were too thick, there would be no transmission of particles at all; the whole point was to demonstrate that most alpha particles passed through unchanged, but some of them scattered, which is only possible with a VERY thin foil.
Why did Rutherford conclude that an atoms nucleus has a posotive charge instead of a negative charge?
when carrying out the alpha scattering experiment, he observed that some alpha particles got deflected from their course. as alpha particles are helium nuclei, they are positively charged. the fact that they deviate made him think that there might be some repulsion between the particles and the nucleus. as positive charges repel each other, he determined the nucleus to be positively charged.
What is the difference between absorption loss and scattering loss?
absorption: having a change in energy from source to the receiver by its medium scattering by particles: occurs without a change in energy, but results in a change in direction of propagation
What is a tyndall effect in chemistry?
The phenomenon of scattering of light by colloidal particles as a result of which the path of the beam becomes visible visible is called Tyndall effect. Causes : The colloidal particles first absorb the incident light and then part of it gets scattered by them. Since the intensity of the scattered light is at right angles to the plane of the incident light, the part becomes visible only when seen in that direction.
What caused the deflection of the alpha particles in Rutherford's gold foil experiment?
The alpha particles scatter from the atomic nuclei in the gold foil. The repulsive electrostatic force between the nucleus and the alpha particle (because both are positively charged and like charges repel) deflects the alpha particle. Because of the large mass and (relatively) large energy of the alpha particles in Rutherford scattering experiments, the alpha particles are largely unaffected by the electrons in the gold atoms. More accurately, the scattering of the alpha particles from the electrons produces small angular deflections.Because the nucleus is small -- approximately 1/10000th the size of the whole atom -- most of the time the alpha particles will pass through the atom with little or no deflection. But occasionally, the alpha particles will start on a trajectory that, without the electrostatic deflection, would take them very close to the nucleus. In such cases, the electrostatic force produces a large angular deflection and can even scatter the alpha particles backwards. If the positive charge in the atom were distributed over the entire size of the atom, the likelihood of having such a large-angle scattering would be much smaller than it was (is) observed to be. Thus, the original experiments demonstrated that the positive charge in atoms is confined to a small region at the very center of an atom. Indeed, the data also provided an estimate of the size of the nucleus. More advanced analyses of such scattering experiments with modern equipment but using electron beams have provided detailed measurements of nuclear diameters for a wide range of atomic nuclei.
Who identified the nucleus of an atom?
The nucleus of an atom is far too small to be "seen" in any conventional sense. The structure of the atom, that is, the one with most of the mass of the atom concentrated in the center, or nucleus, was developed by physicist Ernest Rutherford. In a sense, he is the one who first "saw" the nucleus of the atom. A link to the Wikipedia article on the atom, an article which includes the history of discoveries that lead to modern concepts of it, is provided. A link is also provided to the Rutherford model of the atom, also at Wikipedia. Hey, the nice folks at Wikipedia post knowledge for free. Why not surf on over and help yourself? It's a buffet, with all you can eat.
Difference between rayleigh and mie scattering?
Rayleigh scattering is mainly depends upon wavelength and mie scattering is less depend on wavelenth
Why do the distant mountains appear blue is it the sky you see between them?
This happens due to the Rayleigh scattering effect. The light is scattered among the air molecules and the shorter wavelength (blue) disperses out the furthest, so we see a blueish tint. http://weatherquesting.com/blue-mountains.htm
Is there a difference between reflection and scattering?
in reflection, angle of incidence is equal to angle of refraction.... where as in scattering, there is no such law....:)
What is the difference between absorption and scattering?
your mom is the answer to this question
What are the two differences between the atomic theory described by Thomson and that described by Rutherford?
your stupid. you should know the answer to this. that's why its called "ask.com". get it right.
