Assertion: germanium's electron | /r/HasProperty | hole
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Source sentences:
text: E. Hence, electrons (holes) cannot recombine with holes (electrons) and cannot diffuse through the barrier.
text: Shockley’s device is often called the bipolar junction transistor because its operation requires that the negatively charged electrons and their positively charged counterparts (the holes corresponding to an absence of electrons in the crystal lattice) coexist briefly in the presence of one another.