00:01
Brother for alpha scattering experiment scattering experiment led to discovery of nucleus, discovery of nucleus and he also concluded that the volume of volume or size, of nucleus is very, very less as compared to the atomic volume.
01:17
Atomic volume.
01:26
So in this experiment, what he did, he scattered, he bombarded the alpha particles on the thin gold foil.
01:40
Combarded the alpha particles on thin gold foil and to his surprise he observed that most of them passed straight through the foil most of the alpha particles passed straight through the foil while few of them got deflected with some angle few of them got deflected with some angle and very few of them got bounced back.
02:28
They bounced back, they got deflected by the angle of 180 degree.
02:33
So this suggested him that actually the most of the space inside the atom is empty.
02:42
This is the reason why most of the alpha particles passed straight through the gold foil.
02:47
Because they felt no obstacle in their path.
02:50
But very few got deflected with some angle.
02:55
This is because they got, they have to face some kind of obstacle in their path.
03:01
And that obstacle, since alpha particles are doubly charged, double charged particles.
03:07
Okay, alpha particles are what, helium two positive, double charged helium particles...