Chemistry, asked by rijaabjafar5704, 9 months ago

Why potassium and caesium are used in photoelectric cells?

Answers

Answered by debojitsahu999
2

Answer:

Potassium and caesium are used in photoelectric cells rather than lithium because potassium and caesium have much lower ionisation enthalpy than that of lithium. As a result, these two metals when subjected to light, emit electrons but lithium does not.

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