Structure Of Atom Question 14
Question 14 - 01 February - Shift 2
Which one of the following sets of ions represents a collection of isoelectronic species?
(Given : Atomic Number : $F: 9, Cl: 17, Na=11$, $Mg=12, Al=13, K=19, Ca=20, Sc=21)$
(1) $(Li^{+}, Na^{+}, Mg^{2+}, Ca^{2+}).$
(2) $(Ba^{2+}, Sr^{2+}, K+, Ca^{2+}).$
(3) $(N^{3-}, O^{2-}, F^{-}, S^{2-}).$
(4) $(K^{+}, Cl^{-}, Ca^{2+}, Sc^{3+}).$
Show Answer
Answer: (4)
Solution:
Formula: Electronic Configuraton
$K^{+} Cl^{1} Ca^{2+} Sc^{3+}$
$\begin{matrix} 18 & 18 & 18 & 18\end{matrix} $
