Tag: Alkali metals

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CHEMICAL PROPERTIES OF ALKALI METALS

Alkali metals exhibit very high chemical reactivity because— i) Low IE1, so they form M+ easily. ii) Low heat of atomisation so their vapour are formed easily. iii) High heat of hydration, so a lot of energy is available to break existing bonds. If other factors are not present then Ionisation enthalpy may be taken […]

GENERAL PROPERTIES OF ALKALI METALS

1. Atomic and Ionic Radii: Alkali metals have largest atomic and ionic radii in their respective periods and on moving down the group, atomic and ionic radii increases      Li < Na < K < Rb < Cs 2. Ionisation enthalpy: IE1 values of alkali metals are lowest in each period IE2 values of alkali […]