Thallium shows different oxidation states bec | vedclass

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(B) Thallium $(Tl)$ belongs to Group $13$ of the periodic table. Due to the poor shielding effect of $d$ and $f$ electrons,the $ns^2$ electrons of the

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Of inert-pair effect

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(B) Thallium $(Tl)$ belongs to Group $13$ of the periodic table. Due to the poor shielding effect of $d$ and $f$ electrons,the $ns^2$ electrons of the valence shell are held tightly by the nucleus and do not participate in bonding. This phenomenon is known as the inert-pair effect. Consequently,$Tl$ exhibits both $+1$ and $+3$ oxidation states,with $+1$ being more stable for $Tl$.

Thallium shows different oxidation states because

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