alleryA cubic centimetre of copper contains roughly how many electrons in total?
A≈ 10⁶
B≈ 10¹²
C≈ 10²⁰
D≈ 2.5 × 10²⁴
Answer & Solution
Correct answer: D. ≈ 2.5 × 10²⁴
Per the chapter, a 1 cm cube of copper contains roughly 2.5 × 10²⁴ electrons — illustrating that the macroscopic 'continuous' appearance of charge masks an extremely large discrete count.
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