Main question Hi , for ICl 4 - The answer is Steric Number of 6 and its geometri

Question

Main question Hi , for ICl4- The answer is Steric Number of 6 and its geometric shape is square planar Can someone explain how this is found
Sub question and also, how do you count how many bond to put betweenelements like C=H=C or C-H=C how do you know how many to put u am just making up example so Main question The answer is Steric Number of 6 and its geometric shape is square planar Can someone explain how this is found
Sub question and also, how do you count how many bond to put betweenelements like C=H=C or C-H=C how do you know how many to put u am just making up example so

Explanation / Answer

Steric Number = total no. of electrons shared+ no.of lone pair of electrons    For ICl 4 - the central atom is I whichbelongs to VII A group of the periodic table.So,its valence is7.When it is bonded with 4 Cl atoms there is a remaining of 7 - 4 =3 electrons .In addition to that a -ve charge is present.So thetotal remaining electrons i.e., lone electrons are 3 + 1 = 4=====> 2 lone pair of electrons Steric Number of I = 4 + 2 = 6
In making the bonds of any element the valence rule must besatisfy. C belongs to IV A group,its valence is 4 ,so it must form 4bonds

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