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Tardigrade
Question
Chemistry
Which of the following is not isoelectronic? (a) Na + (b) Mg 2+ (c) O 2- (d) Cl -
Q. Which of the following is not isoelectronic?
(a)
N
a
+
(b)
M
g
2
+
(c)
O
2
−
(d)
C
l
−
1554
147
BHU
BHU 2005
Report Error
A
1 and 2 are correct
B
2 and 3 are correct
C
1 and 4 and correct
D
1,2 and 4 are correct
Solution:
Isoelectronic species have same' number of electrons.
M
g
2
+
,
O
2
−
and
N
a
+
have
10
electrons hence, these are isoelectronic while
Cl
has
18
electrons hence, it is not isoelectronic.