00:01
Here we have been given three terms, physical change, chemical change, nuclear change.
00:06
Physical change is all about transformations of the size or form from one form to another or the states of the matter from liquid to gas, from gas to liquid, from solid to liquid, from liquid to solid.
00:28
So this is all about physical change and they are reversible.
00:31
Nature once they are converted then they can be converted back to the previous forms then we have chemical changes so chemical changes is about the chemical reaction or the combinations of different substances which combine to form a new product and that new product is having different properties new properties from its previous substances.
01:04
So now this chemical change which has take place so this cannot be reversed.
01:14
This is irreversible in nature once the product is formed then it cannot be converted back to the previous form and then we have nuclear change so we all know that we have atoms.
01:30
The basic unit of the of all the structures of any substances, any elements.
01:39
So these atoms also consist of subatomic particles like neutrons, protons or electrons.
01:47
These atoms in the center of the atom we have nucleus.
01:52
And inside this nucleus, the changes which are taking place...