Do electrons seperate from the atom in a current

Question

Since it is stated that electrons flow through a current electrons however are also part of the atom, so is it a refference meaning that only the electrons flow through the circuit or the the entire atoms

Answer 1

electrons can exist seperately, hence there is a negative charge associated with crrent. If they were with atoms, then the respective protons would have cancelled the negative charge.

Answer 2

electrons jump from one atom to another..

Answer 3

in solid, conductor for example copper is holded together by cloud of electron.

only solid metal has this cloud.

this cloud is formed from the valence electron in each atom.

when there is potential difference, this electron in the cloud of electron is moving.

not the whole atom

Answer 4

Only the electrons in the valence circle flow, and there are rules. If the outer valence circle of the atom is balanced , 2^N,  and the ring is full, then it insolates, if the outer ring has 4, then it semi-conducts (when like boron is added) if 3 electrons or less, then the electrons can be drawn to the potential difference. Although silver has only one electron in it's valence circle and is a great conductor, it corrodes, so that is why gold, with only 2 eclectrons, and doesn't corrod, is considered a better conductor.

Basically, the atom stays still, the electrons flow, there by causing friction in there movement, creating heat.

So yes, the electron breaks free, if the valence allowes it.