Alpha scattering experiment V/S Davisson Germer experiment ,,,,,,,,,,,,,,
in the first experiment , +ve charged particles are fired bcos repulsion is what we need,,,,,suppose -ve charged electrons were used, then they wud have got sucked up into the nucleus of the Gold atom no????
But in the Davvison and germer experiment ,, u fire fast electrons into Nickel crystal,,,,,But dont the electrons dont get sucked up here? how come they get SCATTERED? scattering gives a picture of repulsion

Question

Alpha scattering experiment    V/S   Davisson Germer experiment ,,,,,,,,,,,,,,
in the first experiment , +ve charged particles are  fired bcos repulsion is what we need,,,,,suppose -ve charged electrons were used, then they wud have got sucked up into the nucleus of the Gold atom no????
But in the Davvison and germer experiment ,, u fire fast electrons into Nickel crystal,,,,,But dont the electrons dont get sucked up here?   how come they get SCATTERED?   scattering gives a picture of repulsion

anonymous · Answer

In the alpha scattering experiment the alpha particles are seen to behave classically as simple coulomb scattering of one charged particle off another (the nucleus.  In the Davidson-Germer experiment the "scattering" is explained a quantum mechanical wave phenomenon in which the electrons mimic the behavior of light waves passing through ant optical grating.

anonymous · Answer

ok thanks