Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals.

They are better reducing agent than C and CO. 

Due to high ionisation enthalpy of Be and Mg.

(i) Ionisation enthalpy: The first ionisation enthalpies of alkaline earth metals are higher than those ) of alkali metal because of increased nuclear charge, However 2nd ionisation enthalpies of alkaline...

Alkali and alkaline earth metals cannot be obtained by chemical reduction methods because they are very strong reducing agent and highly reactive metals. Because of this they can not be reduced by any other substance very easily.

On heating an alkali earth metal or its salt, the electrons are excited easily to higher energy levels because of absorption of energy. When these electrons return to their ground...

Lithium is the smallest in size among the alkali metals. Hence, Li+ ion can polarize water molecules more easily than other alkali metals. As a result, water molecules get attached to lithium salts as water of crystallization....

(c) either metals or non-metals 

(a) True  (b) False  (c) False  (d) True  (e) False  (f) False  (g) True 

[Hint : Because down the group E – H bond dissociation enthalpy decreases.]

(b) : As the size of the halogen atom increases from F to I, H – X bond length in HX molecules also increases from H – F to H...