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NEETChemistrys Block Elements

What property of caesium and potassium makes them useful as electrodes in photoelectric cells?

Options

  1. AHigh melting point
  2. BLow density
  3. CAbility to lose electrons when irradiated with light
  4. DStrong metallic bonding

Correct answer

C. Ability to lose electrons when irradiated with light

Step-by-step solution

Caesium and potassium are useful as electrodes in photoelectric cells because they have the property of losing electrons when irradiated with light, which is essential for the functioning of photoelectric cells.

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