On going down a main sub-group in the periodic table (example $Li$ to $Cs$ in $IA$ or $Be$ to $Ra$ in $IIA$),the expected trend of changes in atomic radius is a
- AContinuous increase
- BContinuous decrease
- CPeriodic one,an increase followed by a decrease
- D$A$ decrease followed by increase
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Similar Questions
The correct increasing order of the ionic radii is:
The ionic radius is:
Easy
View SolutionAssertion : Atomic radius of gallium is higher than that of aluminium.
Reason : The presence of additional $d$-electrons offers poor screening effect for the outer electrons from increased nuclear charge.
Reason : The presence of additional $d$-electrons offers poor screening effect for the outer electrons from increased nuclear charge.
DifficultAIIMS 2017
View SolutionFrom the given set of species,point out the species from each set having the least atomic radius.
$A. F^{-}, Na^{+}, Mg^{+2}$
$B. Ni, Cu, Zn$
$C. N^{-3}, Cs^{+}, H^{-}$
$D. Li, He, Be^{+2}$
$A. F^{-}, Na^{+}, Mg^{+2}$
$B. Ni, Cu, Zn$
$C. N^{-3}, Cs^{+}, H^{-}$
$D. Li, He, Be^{+2}$
Medium
View SolutionArrange the following ions in the correct order with respect to their ionic radii.
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