Home
Class 11
CHEMISTRY
What makes caesium and potassium useful ...

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

Text Solution

Verified by Experts

Alkali metals can be detected by the respective flame tests and can be determined by the flame photo metry (or) atomic absorption spectroscopy.
Alkali metals when irradiated with light, the light energy absorbed may be sufficient to make an atom lose electron.
THis makes caesium and potassium useful as electrodes in photo electric cells.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • THE S-BLOCK ELEMENTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise LONG ANSWER QUESTIONS |12 Videos

  • THE S-BLOCK ELEMENTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise VERY SHORT ANSWER QUESTIONS |28 Videos

  • THE P-BLOCK ELEMENTS GROUP-14

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise LONG ANSWER QUESTIONS|4 Videos

  • THERMODYNAMICS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Important Questions|41 Videos

Similar Questions

Explore conceptually related problems

Alkali metals used in photoelectric cells

What is "photoelectric effect"?

Knowledge Check

  • The metal best used in photoelectric cells is

    A
    `Na`
    B
    `Mg`
    C
    `Al`
    D
    `Cs`

    • Similar Questions

    Explore conceptually related problems

    What is Photoelectric effect ?

    What is "Photoelectric effect" ?

    What is "Photoelectric Effect" ?

    Potassium is used in photogalvanic cells. Why?

    Write the electrode reactions in Nelson's cell.

    Write the electrode reactions in a Daniel cell.

    What are electrolytes ? Distinguish between metallic electrodes and electrolytes.

    Home
    Profile