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(a) How does the chemical reactiviyt of...

(a) How does the chemical reactiviyt of alkali metals vary on going down in group 1 of the periodic table?
(b) How does the chemical reactivity of the halogens vary on going down in group 17 of the periodic table?

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Knowledge Check

  • The atomic and ionic radii of alkali metals vary on moving down the group :

    A
    `LigtNagtKgtRbgtCs`
    B
    `LigtNa^(+)gtK^(+)gtRb^(+)gtCs^(+)`
    C
    `LiltNaltKgtRbgtCs`
    D
    `Li^(+)ltNa^(+)ltK^(+)ltRb^(+)ltCs^(+)`

  • Alkali metals belong to which group in the periodic table ?

    A
    Group-2
    B
    Group-1
    C
    Group-3
    D
    None of these

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