How to separate a nucleus from an atom?

Question

most economical way

Answer 1

Electrons are easily stripped from a nucleus.,

Answer 2

Hit it with nucleus of an another atom.

Answer 3

bommbing the athom by speeding electrons (in CERN)

or using  strong electro magnetic field

Answer 4

Separating the nucleus from the electrons is the same as separating the electrons from the nucleus.

Very large electric fields will strip the electrons off.

Answer 5

I wouldn't recommend hitting the nucleus with something because that will split the nucleus into fragments -- i.e. nuclei of two different elements. And once you've split the nucleus, then unless you go into the core of a really huge star and perform nuclear fission, or have a supernova bring it back to its original form, then there's no way to get it back to the original nucleus.

I think the best way of accomplishing this is to remove the electrons instead. It will take a lot of energy (and I mean, a LOT), but I think its easier to move the smaller electrons than the larger, heavier nucleus.