•which of the following elements are most likely to act as 9 acceptor impurities in germanium? (a) bromine, (b) gallium, (c) sil- icon, (d) phosphorus, (e) magnesium • which of the following elements are most likely to serve 10 as donor impurities in germanium? (a) bromine, (b) gallium, (c) sil- icon, (d) phosphorus, (e) magnesium
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