(D) $Cs$ (Cesium) is used in photoelectric cells because it has the lowest ionization energy among all stable elements,allowing it to emit electrons e

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(D) $Cs$ (Cesium) is used in photoelectric cells because it has the lowest ionization energy among all stable elements,allowing it to emit electrons easily when exposed to light.

Class 11 Chemistry s-Block Elements Alkali metals

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The metal mainly used in devising photoelectric cells is:

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A
$Na$
B
$Rb$
C
$Li$
D
$Cs$

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s-Block Elements

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Alkali metals

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The atomic radii of the alkali metals follow the order

MediumKVPY 2009

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Which of the following statements is $CORRECT$?

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Which of the following has maximum solubility in water?

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Explain why is $sodium$ less reactive than $potassium$?

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Calcium is obtained by

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The metal mainly used in devising photoelectric cells is:

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The atomic radii of the alkali metals follow the order

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