When alpha particles were sent through a thin metal foil, only one out of ten thousand rebounded. This observation led to the conclusion that:
When alpha particles were sent through a thin metal foil, only one out of ten thousand rebounded. This observation led to the conclusion that:
The correct option is B Positively charged particles are concentrated at the centre of the atom
-When alpha particles were sent through a thin metal foil only one out of ten thousand rebounded.
-At the time of the experiment, the atom was thought to be analogous to plum pudding (as proposed by J.J. Thomson), with the negative charges (the plums) found throughout a positive sphere (the pudding).
-If the plum pudding model was correct, the positive "pudding", being more spread out than in the current model of a concentrated nucleus, would not be able to exert such large coulombic forces, and thus alpha particles should only be deflected by small angles as they pass through.
-So, Rutherford concluded that positively charged particles are concentrated at the centre of the atom.
Positively charged particles are concentrated at the centre of the atom
-When alpha particles were sent through a thin metal foil only one out of ten thousand rebounded.
-At the time of the experiment, the atom was thought to be analogous to plum pudding (as proposed by J.J. Thomson), with the negative charges (the plums) found throughout a positive sphere (the pudding).
-If the plum pudding model was correct, the positive "pudding", being more spread out than in the current model of a concentrated nucleus, would not be able to exert such large coulombic forces, and thus alpha particles should only be deflected by small angles as they pass through.
-So, Rutherford concluded that positively charged particles are concentrated at the centre of the atom.
