A crystal is grown by evaporating A and 8 type

atoms, and then letting them condense to
form the crystal. If, because of the forces
involved, on A atom is twice as likely to stick to
the crystal OS a B atom, what is the probability
that the final crysta

pls show step i dont know

I'll let bob handle the physics. You need to proofread your post this time -- get rid of the sloppy typos and finish the question.