The electrons in a normal (non-superconductivity) metal also form a Fermi liquid.

In other words, the energy states of each electron are described as if all the other electrons simply form a homogeneous background.

Some conducting materials may pass electrons to form a difference in electrical charge at the join.

If the electrons form a chemical bond then a line is drawn between the two electrons.

Atoms will lose an electron(s) forming an array of positive ions.

This electron forms a chemical bond to the rest (R) of the molecule.

The electrons form a current running outside the cell while the positively charged ions left behind move through the cell.

Finally, these atomic nuclei captured electrons to form atoms.

The available electrons in the lowest energy level form the strongest bonds.

The two orbiting electrons of the helium atom form a shell.