00:01
The first option which we have is sf6.
00:04
So, sf6 in this sulfur, it belongs to oxygen family.
00:09
Oxygen family.
00:10
That means it has 6 valence electron.
00:13
Since it has 6 valence electron and all the 6 valent electron are used up in bonding with fluorine, so bond pair is equal to 6, lowen pair is equal to 0.
00:21
And therefore, if we see the static number, it is 6 plus 0.
00:24
That means bone pair plus loan pair, it is equal to 6.
00:26
And when we have static number, we can comment on the hybridization.
00:29
So it is going to be sp3d2 and sp3d2 means what geometry it is going to be octahedral geometry octahedral geometry so the structure for this is sulfur will be present then fluorine chlorine and four other fluorines so this is basically the structure for sf6 moving forward we have is i3 minus in the case of i3 minus it is going to have a linear geometry linear geometry because in this case what happens over here idine means what belonging to halogen family means seven valence electron out of the seven valence electron the two valence electron are used up in bonding with another two atoms of idine so two used up therefore i can say bonding pair is equal to two and therefore we have loan pair how many we have to calculate because after removing two valence electron five is there but there is a negative charge means extra electron is there therefore six electrons are there since there are six electrons therefore it has three loan pairs so now the steyic number bond pair plus loan pair so 3 plus 2 is equal to 5 and hybridization would be sp 3d and the structure for this is i then we will have i negative then near this will have loan pairs in this fashion so these are the loan pairs which are present and it has a linear geometry for this next molecule which we have is s e f4 selenium tetrafluoride in this case this has a see -saw geometry.
02:08
Seesaw geometry.
02:11
Why? because when we consider the atom which we have is ses, s -e belongs to oxygen family.
02:17
So oxygen family means what? six -valence electron.
02:20
And since it has six -valence electron, out of the six -four used for bonding.
02:23
So bond pair is equal to four.
02:25
And loan pair is equal to how much? so loan pair is equal to one...