What will be the % d character in I_3^-,accor | vedclass

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(B) The central iodine atom in $I_3^-$ is bonded to two other iodine atoms and has three lone pairs of electrons.Using the formula for steric number:

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$20$

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(B) The central iodine atom in $I_3^-$ is bonded to two other iodine atoms and has three lone pairs of electrons.Using the formula for steric number: $SN = 	ext{Number of sigma bonds} + 	ext{Number of lone pairs} = 2 + 3 = 5$.$A$ steric number of $5$ corresponds to $sp^3d$ hybridisation.In $sp^3d$ hybridisation,there are $5$ orbitals in total: $1$ $s$-orbital,$3$ $p$-orbitals,and $1$ $d$-orbital.The percentage of $d$-character is calculated as: $\frac{1}{5} 	imes 100 \% = 20 \%$.

What will be the $\% d$ character in $I_3^-$,according to hybridisation (in $\%$)?

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