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Question
The atom that has the largest atomic radius among the following:
The atom that has the largest atomic radius among the following:
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Solution
The correct option is A Zn
The atomic radius decreases along the period but in d- block elements across the period shielding effect also take place.
Due to the balancing effect of shielding and increase in Zeff, atomic radius is almost same for Co, Ni and Cu.
s- subshell has more shielding effect and Copper having an exceptional electronic configuration has only 1 electron in s subshell whereas zinc has 2 electrons, so more electronic repulsion.
Because of this Zn has largest atomic radius among the options.
The atomic radius decreases along the period but in d- block elements across the period shielding effect also take place.
Due to the balancing effect of shielding and increase in Zeff, atomic radius is almost same for Co, Ni and Cu.
s- subshell has more shielding effect and Copper having an exceptional electronic configuration has only 1 electron in s subshell whereas zinc has 2 electrons, so more electronic repulsion.
Because of this Zn has largest atomic radius among the options.
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