Gconsider two copper wires separated only by their surface oxide layer (cuo). classically, since the oxide layer is an insulator, no current should be possible through the two copper wires. suppose that for the conduction ("free") electrons in copper, the surface oxide layer looks like a square potential barrier of height 10 ev. consider an oxide layer thickness of 5 nm and evaluate the transmission coefficient for conduction electrons in copper, which have a kinetic energy of about 7 ev. what will be the transmission coefficient if the oxide barrier is 1 nm?

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.