Questions
Which of the following triads have approximately equal size?
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a
Na⊕,Mg2+,Al3+ (isoelectronic)
b
F⊖,Ne,O2− (isoelectronic)
c
Fe,Co,Ni
d
Mn1+,Fe2+,Cr (isoelectronic)
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Correct option is C
Triads of group VIII (groups 8,9 and l0) have approximately the same size, e.g.Ist triad, Fe, Co, NiIInd triad, Ru, Rh, PdIIIrd triad, Os, Ir, Pt.Talk to our academic expert!
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