How do you explain higher stability of tlcl than tlcl3?
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This is so interesting question.
Tl is a heavier p-block element (valence electronic configuration, Tl 6s2,6p1 ), and heavier p-block elements show inert-pair effect, whereas, such elements valence s-orbitals shows reluctance to participate in a chemical reaction, i.e., they prefer to remain inert, thereby only p-orbital electrons participate readily in a chemical reaction keeping ns2 electrons intact.
Since in Thallium there total 3 electrons in valence shell (2 in s or 1 in p ) of which 2 are on s-orbital which prefers to remain non-reactive (inert) so, only 1 electron that is in p-orbital participates in chemical reactions most of the times. So, Tl1+ compounds are more stable over Tl3+. And this behaviour of heavier p-block elements is attributed to inert-pair effect.
Hope this will help you.
Tl is a heavier p-block element (valence electronic configuration, Tl 6s2,6p1 ), and heavier p-block elements show inert-pair effect, whereas, such elements valence s-orbitals shows reluctance to participate in a chemical reaction, i.e., they prefer to remain inert, thereby only p-orbital electrons participate readily in a chemical reaction keeping ns2 electrons intact.
Since in Thallium there total 3 electrons in valence shell (2 in s or 1 in p ) of which 2 are on s-orbital which prefers to remain non-reactive (inert) so, only 1 electron that is in p-orbital participates in chemical reactions most of the times. So, Tl1+ compounds are more stable over Tl3+. And this behaviour of heavier p-block elements is attributed to inert-pair effect.
Hope this will help you.
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