why alkali metals are used for making photocell ? ( short answer )
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Answered by
4
Explanation:
They have low ionisation energy and can lose electrons when light falls on them, that is why they are used in photoelectric cells.
Answered by
17
Answer:
Alkali metals have lower ionization energy than their counterparts and hence have higher chance of emitting electrons when a radiation falls on them. So they are used in photoelectric cells so that they easily emit electron when energy containing photons in sunlight strikes them.
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