what do u understand by ioselectronic species? give the formula of a species that will be ioselectronic with the following atoms or ions .(f-, Ar,Rb+,Mg2+)
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Isoelectronic species/ions/atoms are the species which have same number of electrons but different magnitude of nuclear charges & belongs to different atoms or ions. The isoelctronic ions with greater nuclear charge will have small size as compared to the ion with smaller nuclear charge.
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F– ion (9 + 1 = 10 electrons), Ne (10 electrons), O2– ion (8 + 2 = 10 electrons), and Al3+ ion (13 – 3 = 10 electrons). (iv) Rb+ ion has 37 – 1 = 36 electrons. Thus, the species isoelectronic with it will also have 36 electrons.
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