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Why are alkaline earth metal smaller tha...

Why are alkaline earth metal smaller than the Corresponding alkali metals.

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This is due to the fact the group 2 elements have higher nuclear charge that allows electrons to be attracted more strongly towards the nucleus thereby decreasing the ionic radii. Thus alkaline earth metals are smaller than the corresponding alkali metals.
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Alkaline earth metals are

Atomic radii of alkaline earth metals are smaller than the corresponding members of alkali metals. Why?

Knowledge Check

  • Assertion : Alkaline earth metals are harder than alkali metals Reason : Atomic radii Qf alkaline earth metals are smaller than corresponding alkali metals in the same periods of periodic table

    A
    both assertion and reason are true and reason is the correct explanation of assertion
    B
    both assertion and reason are true but reason is not the correct explanation of assertion
    C
    assertion is true but reason is false
    D
    both assertion and reason are false

  • Alkaline earth metals are

    A
    Reducing agent
    B
    Oxidising agent
    C
    Amphoteric
    D
    Acidic

  • Alkaline earth metals are

    A
    Monovalent
    B
    Divalent
    C
    Trivalent
    D
    Zerovalent

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    Atomic radii of alkaline earth metals are smaller than the corresponding members of alkali metals. Why?

    IE_2 values of alkaline earth metals are much smaller than those of alkali metals. Explain.

    (i) LiCIO_(4) is more soluble than NaCIO_(4) Why? (ii) Explain- IE_(1) of alkaline earth metals are higher than that of alkali metal.

    Hydration enthalpies of alkaline earth metal ions are larger than these of alkkali metal ions. Explain.

    What are alkaline earth metals? Why are they called so?

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