When alpha particles are passed through gold atom.....then why only they deflect from nucleus why not they deflect from electrons?? (Do not send links plz)

Dear student,

1.We know that like charges repel each other while unlike charges attract each other.
1.The alpha particle is a positively charged particle consisting of 2 protons and 2 neutrons. Because it has no electron cloud, it has an overall charge of +2.
3.In an atom, the protons and neutrons are present inside the nucleus while the electrons are present in orbitals around the nucleus. 4.So the positive charge is confined in the nucleus while the negative charge is distributed around the nucleus.
5.Hence, when alpha particles pass through a space close to the nucleus, then they will face repulsion from the positive charge of the nucleus.
6.This will cause the alpha particles to deflect. Also, when the alpha particles pass through space away from the nucleus, then they will be attracted by the electrons. This attraction between the electrons and the alpha particles will cause them to deflect. 

Regards

  • 0
What are you looking for?