Search any question & find its solution
Question:
Answered & Verified by Expert
In the following sets of ions, which one is not isoelectronic with the rest of the species?
$$
\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{2+}, \mathrm{Al}^{3+}, \mathrm{Ne}
$$
Options:
$$
\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{2+}, \mathrm{Al}^{3+}, \mathrm{Ne}
$$
Solution:
2078 Upvotes
Verified Answer
The correct answer is:
$\mathrm{Na}$
$\mathrm{O}^{2-}\left(10 e^{-}\right), \mathrm{F}^{-}\left(10 e^{-}\right), \mathrm{Na}\left(11 e^{-}\right), \mathrm{Mg}^{2+}\left(10 e^{-}\right)$ $\mathrm{Al}^{3+}\left(10 e^{-}\right)$and $\mathrm{Ne}\left(10 e^{-}\right)$
Thus, Na is not isoelectronic with the rest of the species.
Thus, Na is not isoelectronic with the rest of the species.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.