A one cubic cm of copper has how many free electrons at room temperature ___

[Rohit123]

A one cubic cm of copper has how many free electrons at room temperature?

A. 80 × 10¹⁸
B. 8.5 × 10²²
C. 20 × 10¹⁰
D. 50 × 10²⁰

Show Answer

Answer: B

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