Which three statements are true about all alloys? they’re made from metals combined in equal amounts. they’re harder than the pure metals they’re made of. they’re good conductors of electricity. they’re brittle and prone to cracking. they have a metal as their main component.

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?