Advertisements
Advertisements
प्रश्न
What do you understand by isoelectronic species? Name a species that will be isoelectronic with the following atom or ion:-
Mg2+
उत्तर
Atoms and ions having the same number of electrons are called isoelectronic species.
Mg2+ ion has 12 – 2 = 10 electrons. Thus, the species isoelectronic with it will also have 10 electrons. Some of its isoelectronic species are F– ion (9 + 1 = 10 electrons), Ne (10 electrons), O2– ion (8 + 2 = 10 electrons), and Al3+ ion (13 – 3 = 10 electrons).
APPEARS IN
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:-
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?
