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प्रश्न
The atomic radii of transition elements belonging to a particular series ______ with increase in atomic number.
रिकाम्या जागा भरा
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उत्तर
The atomic radii of transition elements belonging to a particular series decrease with increase in atomic number.
Explanation:
As we move across a transition series, electrons are added to the (n – 1) d-subshell, and the effective nuclear charge increases. Due to the poor shielding by d-electrons, the increased attraction causes a slight decrease in atomic radii across the period.
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