Difference between the alkaline metals and alkaline earth metals

1.	Difference between the alkaline metals and alkaline earth metals
Answer» \t\xa0PropertiesAlkaline earth metalsAlkali metals1.Physical propertiesComparatively harder. High melting points. Diamagnetic.Soft, low melting points paramagnetic.2.ValencyBivalentMonovalent3.Electropositive natureLess electropositiveMore electropositive4.HydroxidesWeak bases, less soluble and decompose on heating.Strong bases, highly soluble and stable towards heat.5.BicarbonatesThese are not known in free state. Exist only in solution.These are known in solid state.6.CarbonatesInsoluble in water. Decompose on heating.Soluble in water. Do not decompose on heating (LiCO3\xa0is an exception)7.Action of carbonDirectly combine with carbon and form carbidesDo not directly combine with carbon8.Solubility of saltsSulphates, phosphates fluorides, chromates, oxalates etc are insoluble in waterSulphates, phosphates, fluorides, chromates, oxides etc are soluble in water.9.Reducing powerWeaker as ionization potential values are high and oxidation potential values are low.Stronger as ionization potential values are low and oxidation potential values are high10.Electronic configurationTwo electrons are present in the valency shall. The configuration is ns2\xa0(bivalent)One electron is present in the valency shell. The configuration is ns1\xa0(monovalent) more electropositive\t

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