Which of the following ion has the highest value of
ionic radius ?
(B) F-
(A) Lit
(C) 02-
(D) B3+
Answers
Answered by
1
Answer:
(C) 02- has highest value of ionic radius
Explanation:
your answer
Answered by
1
Answer: Correct answer is O2-
Explanation: No. of electrons in O
2−
= 10
No. of electrons in B
3+
= 8
No. of electrons in Li
+
= 4
No. of electrons in F
−
= 10
F
−
and O
2−
have highest no. of electrons, thus the effective nuclear charge {
No. of electrons
nuclear charge
} for them is less than B and Li.
When effective nuclear charge increases, size of an ion decreases.
Amongst F
−
and O
2−
, size of O
2−
is more than F
−
as size decreases on moving from left to right in a period.
Therefore, O
2−
is largest in size.
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