| http://www.w3.org/ns/prov#value | - They are soft metals with fixed O.N. 1 in their compounds. 3Group II Elements (Alkaline Earth Metals)Mg and Ca are the most abundant elements and Ra is the most scarce element which is unstable and radioactive. 4Atomic and ionic radiusAtomic radius and ionic radius increase An addition of one more shell ENC decrease 5?1 Compare the atomic radius of alkali and alkaline earth metalsAlkali metals gt
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