What would be the interaction force between two copper spheres, each of mass 1g, separated by the distance 1m, if the total electronic charge in them differed from the total charge of the nuclei by one percent ?

Question

mani_jha · Answer

You know the distance. Your job is to find the charge of each sphere.

Now, Cu will have electron deficiency because it is a metal. Each Cu atom will have 29 protons, so its nuclear charge will be +29.
So, how many total number of atoms are there?
Use the mole concept(no of moles=mass/atomic weight). So no of atoms will be no of moles*avogadro's no.
So, total nuclear charge is no of atoms*29. Find the electronic charge using the fact that it is 1% less than the nuclear charge.
Then, use Coulomb's formula.
I know that this is a very long process, but this is what I can come up with right now! Yawnnnnnnn...

anonymous · Answer

Thanks Mani