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HARDMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesAchiever Section

In which of the following sets of elements, they have nearly the same atomic size

A.Li, Be, B, C

B.Mg, Ca, Sr, Ba

C.O, S, Se, Te

D.Fe, Co, Ni, Cu✓ Correct

Explanation

d-block elements from Fe to Cu have nearly same atomic size.

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