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प्रश्न
The size of isoelectronic species — F-, Ne and Na+ is affected by ______.
विकल्प
Nuclear charge (Z)
Valence principal quantum number (n)
Electron-electron interaction in the outer orbitals
None of the factors because their size is the same.
उत्तर
Nuclear charge (Z)
Explanation:
The size of an isoelectronic species increases with a decrease in the nuclear charge (Z). For example, the order of the increasing nuclear charge of F–, Ne, and Na+ is as follows:
F– < Ne < Na+
Z 9 10 11
Therefore, the order of the increasing size of F–, Ne and Na+ is as follows:-
Na+ < Ne < F–
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संबंधित प्रश्न
What does atomic radius and ionic radius really mean to you?
What do you understand by isoelectronic species? Name a species that will be isoelectronic with the following atom or ion:-
F-
What do you understand by isoelectronic species? Name a species that will be isoelectronic with the following atom or ion:-
Ar
What do you understand by isoelectronic species? Name a species that will be isoelectronic with the following atom or ion:-
Mg2+
What do you understand by isoelectronic species? Name a species that will be isoelectronic with the following atom or ion:-
Rb+
Consider the following species:-
N3–, O2–, F–, Na+, Mg2+ and Al3+
Arrange them in the order of increasing ionic radii.
Consider the following species:-
N3–, O2–, F–, Na+, Mg2+ and Al3+
What is common in them?
Explain why cations are smaller and anions larger in radii than their parent atoms?
Ionic radii vary in
(i) inverse proportion to the effective nuclear charge.
(ii) inverse proportion to the square of effective nuclear charge.
(iii) direct proportion to the screening effect.
(iv) direct proportion to the square of screening effect.
The correct order of ionic radii for the ions s2−, Cl−, p3−, Ca2+ is ______.
The size of iso-electronic species Cl-, Ar and Ca2+ is affected by ______.
Which one of the following has the largest ionic radius?
