What important information is furnished about the nucleus of an atom by the alpha particle scattered experiment of Rutherford?
What important information is furnished about the nucleus of an atom by the alpha particle scattered experiment of Rutherford?
When Rutherford bombarded thin sheet of gold foil with α -particles (α-particles are doubly charged
helium ions, He(with chaege +2), he found that:
(i) Most of the α-particles passes through the foil without any deflection. He calculated that only one particle in 105 bounced back. This shows that most of the space inside the atom is empty and hollow.
(ii) Some of the α-particles were deflected through various angles while a very small number were actually deflected by as much as 180°.This shows that:
(a) There is a heavy positively charged centre inside the atom. This centre is known as nucleus.
(b) Since only a very small fraction of α-particles were deflected through large angles, the nucleus is situated in a very small volume of the atom and is positively charged. The nucleus was found to be about 105 times smaller than the total area occupied by the atom as a whole.
(c) Since α-particles deflected by the nucleus have an appreciable mass, it means that the entire mass of the atom lies inside the nucleus.
When Rutherford bombarded thin sheet of gold foil with α -particles (α-particles are doubly charged
helium ions, He(with chaege +2), he found that:
(i) Most of the α-particles passes through the foil without any deflection. He calculated that only one particle in 105 bounced back. This shows that most of the space inside the atom is empty and hollow.
(ii) Some of the α-particles were deflected through various angles while a very small number were actually deflected by as much as 180°.This shows that:
(a) There is a heavy positively charged centre inside the atom. This centre is known as nucleus.
(b) Since only a very small fraction of α-particles were deflected through large angles, the nucleus is situated in a very small volume of the atom and is positively charged. The nucleus was found to be about 105 times smaller than the total area occupied by the atom as a whole.
(c) Since α-particles deflected by the nucleus have an appreciable mass, it means that the entire mass of the atom lies inside the nucleus.
