Which of the alkali metals has the lowest mel | vedclass

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(D) The atomic size of alkali metals increases as we move down the group from $Li$ to $Cs$.As the atomic size increases,the strength of metallic bondi

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$Cs$

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(D) The atomic size of alkali metals increases as we move down the group from $Li$ to $Cs$.As the atomic size increases,the strength of metallic bonding decreases because the valence electrons are further from the nucleus.Consequently,the melting point decreases down the group.Among the given options,$Cs$ (Cesium) is the largest atom and therefore has the lowest melting point.

List-$I$	List-$II$
$(a)$ $NaOH$	$(i)$ Acidic
$(b)$ $Be(OH)_{2}$	$(ii)$ Basic
$(c)$ $Ca(OH)_{2}$	$(iii)$ Amphoteric
$(d)$ $B(OH)_{3}$
$(e)$ $Al(OH)_{3}$

Which of the alkali metals has the lowest melting point?

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Match List-$I$ with List-$II$ :

List-$I$ List-$II$

$(a)$ $NaOH$ $(i)$ Acidic

$(b)$ $Be(OH)_{2}$ $(ii)$ Basic

$(c)$ $Ca(OH)_{2}$ $(iii)$ Amphoteric

$(d)$ $B(OH)_{3}$

$(e)$ $Al(OH)_{3}$

Choose the most appropriate answer from the options given below :

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