The element which has the smallest atomic radius is
Correct answer: D. Cu
- A. Fe
- B. Co
- C. Ni
- D. Cu
Explanation
Atomic radius decreases across a period since all these elements belong to the same period of the d-block, copper is the last element in the period amongst these elements. Hence it has the smallest atomic radius.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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