12. Semiconductors are elements that
A. Have large atomic masses but small atomic numbers.
B. Do not form compounds.
C. Can conduct heat and electricity under certain conditions.
D. Are extremely hard.
ther nonmetals are found in which area of the period
A. Have large atomic masses but small atomic numbers.
B. Do not form compounds.
C. Can conduct heat and electricity under certain conditions.
D. Are extremely hard.
ther nonmetals are found in which area of the period
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