Caesium oxide will be

Caesium chloride on heating to 760K changes into:

Determine the density of caesium chloride which crystallises out in a bcc lattice. The length of a side of a unit cell is '412.1 pm', atomic masses of caesium and chlorine are 133 and 35.5 respectively.

Assertion CsI is least soluble of all caesium halides in water.Reason It is due to low hydration energy.

a. Monoxides of all alkali metals are hydrolysed by water, but lithium monoxide is slowly hydrolysed. Why? b. Predict the product of the product of the hydrolysis of KO_(2) . c. Which of the following is paramagnetic: K_(2)O, K_(2)O_(2), KO_(2) d. Caesium oxide is expected to be strongly basic, weakly basic or acidic.

Assertion : Caesium is used in photoelectric cells. Reason : Caesium is most electropositive element.

Caesium is the lightest alkali metal.

Caesium is the lightest alkali metal.

Caesium forms chiefly ionic compounds because