Because in a conductor charges are free to move and since like charges repel each other they move as far as they can from each other, which is the surface.
Because like charges repel.
If the sphere is conducting, all the charge is distributed uniformly on the outer surface of the sphere.
As of today no, but maybe in the future.
The curved outer surface of a circle is the perimeter.
The outer surface of the bone is called the periosteum.
Na K pump :) J Debban
they have coating of wax on the outer surface of their body
The Earth has always been a big ball of rock, with a metallic core, ever since it was originally formed. It has always been land, which is what we call the outer surface.
cuticle
lining
It depends what number the shell is, valence just means 'outer'
The outer surface of the moon is called the crust.
The net charge of the nucleus is positive because the electrons (e-) are not in the nucleus there are around it in the outer shells.