NCERT Class XI Chemistry Classification of Elements and Periodicity in Properties Solutions
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Question : 12
Total: 40
Consider the following species : N 3 – , O 2 – , F – , N a + , M g 2 + A l 3 +
(a) What is common in them?
(b) Arrange them in the order of increasing ionic radii.
(a) What is common in them?
(b) Arrange them in the order of increasing ionic radii.
Solution:
(a) All these are isoelectronic species as they are having same number of electrons i.e., 10.
(b) As Z/e decreases, size increases so, order should be,
N 3 – O 2 – F – N a + M g 2 + A l 3 +
(b) As Z/e decreases, size increases so, order should be,
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