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Chemistry
Which of the following pairs is isoelectronic?
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Q. Which of the following pairs is isoelectronic?
COMEDK
COMEDK 2010
Structure of Atom
A
$Ar$ and $Cl$
7%
B
$Na^+$ and $Ne$
64%
C
$Na^+$ and $Mg$
24%
D
$Mg$ and $Ne$
5%
Solution:
Ar contains 18 electrons.
Cl contains 17 electrons.
Na$^+$ contains 10 electrons.
Ne contains 10 electrons.
Mg contains 12 electrons