Which of the following alkali metals is smallest in size

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Solution

The correct option is D
Li

Element - Li Na K Rb

Atomic radius(pm) - 152 186 227 248

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Similar questions

The order of decreasing ionisation enthalpy in alkali metals is
(a) Na> Li > K> Rb (b) Rb< Na< K< Li
(c) Li > Na> K> Rb (d) K< Li < Na < Rb

Q. Consider the following statements :
(I)

C s^{+}

ion is more highly hydrated than other alkali metal ions.
(II) Among the alkali metals

L i, N a, K,

and

R b, L i

has the higher melting point.
(III) Among the alkali metals, only

L i

forms a stable nitride by direct combination.

Q. Atomic radii of alkali metals (M) follow the order

L i < N a < K < R b

but ionic radii in aqueous solutions follow the reverse order

L i^{+} > N a^{+} > K^{+} > R b^{+}

The reason for the reverse order is :

Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
(a) Li (b) Na (c) K (d) Cs

Q. Among the first four alkali metals in group l of the periodic table Li, Na, K, Rb the most electropositive metal is which one? Why?

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Which of the following alkali metals is smallest in size

The correct option is D Li Element - Li Na K Rb Atomic radius(pm) - 152 186 227 248

The correct option is D
Li

Element - Li Na K Rb

Atomic radius(pm) - 152 186 227 248