Question
Chemistry Question on properties of d block elements
The species Ar,K+ and Ca2+ contain the same number of electrons. In which order do their radii increase?
A
\ceCa2+<K+<Ar
B
\ceK+<Ar<Ca2+
C
\ceAr<K+<Ca2+
D
\ceCa2+<Ar<K+
Answer
\ceCa2+<K+<Ar
Explanation
Solution
Atomic radius and ionic radius ∝Zeffective1