Lesson: VESPR theory

VESPR theory deals with the shape of molecules. VESPR theory deals with the shape of molecules. VESPR stands for VESPR theory deals with the shape of molecules. VESPR stands for valance VESPR theory deals with the shape of molecules. VESPR stands for valance electron VESPR theory deals with the shape of molecules. VESPR stands for valance electron shell VESPR theory deals with the shape of molecules. VESPR stands for valance electron pair shell VESPR theory deals with the shape of molecules. VESPR stands for valance electron pair shell repulsion V E S P R Electron ? Shell ? Pair ? Valence ? Repulsion ? VESPR theory counts how many 'groups' of electrons VESPR theory counts how many 'groups' of electrons are around the central atom. VESPR theory counts how many 'groups' of electrons A bond counts as one 'group' are around the central atom. VESPR theory counts how many 'groups' of electrons A bond counts as one 'group' It doesn't matter whether is it single, are around the central atom. VESPR theory counts how many 'groups' of electrons A bond counts as one 'group' It doesn't matter whether is it single, double, are around the central atom. VESPR theory counts how many 'groups' of electrons A bond counts as one 'group' It doesn't matter whether is it single, double, or triple are around the central atom. VESPR theory counts how many 'groups' of electrons A bond counts as one 'group' It doesn't matter whether is it single, double, or triple are around the central atom. bond. VESPR theory counts how many 'groups' of electrons A bond counts as one 'group' It doesn't matter whether is it single, double, or triple It still counts as ONE group! are around the central atom. bond. This atom has three bonding groups. N This atom has three bonding groups. 1 N This atom has three bonding groups. 1 N 2 This atom has three bonding groups. 1 N 2 3 This atom also has three bonding groups. C This atom also has three bonding groups. 1 C This atom also has three bonding groups. 1 C 2 This atom also has three bonding groups. 1 C 2 3 How many groups? 1 2 3 4 O How many groups? 1 2 3 4 N How many groups? 1 2 3 4 O How many groups? 1 2 3 4 C Lone electron pairs also act as 'groups'. Lone electron pairs also act as 'groups'. Ne Lone electron pairs also act as 'groups'. Each 'pair' acts as a group. Ne Lone electron pairs also act as 'groups'. Each 'pair' acts as a group. 1 Ne Lone electron pairs also act as 'groups'. Each 'pair' acts as a group. 1 Ne 2 Lone electron pairs also act as 'groups'. Each 'pair' acts as a group. 1 Ne 3 2 Lone electron pairs also act as 'groups'. Each 'pair' acts as a group. 4 1 Ne 3 2 Lone electron pairs also act as 'groups'. So this atom has 4 electron pair groups. Each 'pair' acts as a group. 4 1 Ne 3 2 How many electron pair groups? O How many electron pair groups? O 1 2 3 4 The shape of the molecule is determined by The shape of the molecule is determined by the number of electron groups on the central atom The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N This atom has 4 electron groups The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N 1 This atom has 4 electron groups The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N 1 2 This atom has 4 electron groups The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N 3 1 2 This atom has 4 electron groups The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom 4 N 3 1 2 This atom has 4 electron groups The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N This atom has 4 electron groups One group of electron pairs The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N 1 This atom has 4 electron groups One group of electron pairs The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N This atom has 4 electron groups and 3 groups of bonding groups One group of electron pairs The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N 1 This atom has 4 electron groups and 3 groups of bonding groups One group of electron pairs The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom N 2 1 This atom has 4 electron groups and 3 groups of bonding groups One group of electron pairs The shape of the molecule is determined by the type of electron groups on the central atom the number of electron groups on the central atom 3 N 2 1 This atom has 4 electron groups and 3 groups of bonding groups One group of electron pairs Total groups P 1 2 3 4 Electron pair groups Bonding Groups 0 1 2 3 0 1 2 3 Total groups O 1 2 3 4 Electron pair groups Bonding Groups 0 1 2 3 0 1 2 3 Be Total groups 1 2 3 4 Electron pair groups Bonding Groups 0 1 2 3 0 1 2 3 If a central atom has 3 total groups and 1 electron pair group If a central atom has 3 total groups and 1 electron pair group Cl Sn Cl If a central atom has 3 total groups and 1 electron pair group Cl Sn 1 Cl If a central atom has 3 total groups and 1 electron pair group Cl Sn 1 2 Cl If a central atom has 3 total groups and 1 electron pair group Cl 3 Sn 1 2 Cl If a central atom has 3 total groups and 1 electron pair group 3 total groups Cl 3 Sn 1 2 Cl If a central atom has 3 total groups and 1 electron pair group 3 total groups Cl Sn Cl If a central atom has 3 total groups and 1 electron pair group 3 total groups Cl Sn 1 Cl If a central atom has 3 total groups and 1 electron pair group 1 electron pair group 3 total groups Cl Sn 1 Cl If a central atom has 3 total groups and 1 electron pair group 1 electron pair group 3 total groups It has a 'bent' shape Cl Sn 1 Cl If a central atom has 3 total groups and 1 electron pair group 1 electron pair group 3 total groups It has a 'bent' shape Cl Sn 1 Cl If a central atom has 3 total groups and 1 electron pair group 1 electron pair group 3 total groups It has a 'bent' shape Cl Sn 1 Cl Sn If a central atom has 3 total groups and 1 electron pair group 1 electron pair group 3 total groups It has a 'bent' shape Cl Sn 1 Cl Cl Sn Cl Each variation on the number of Total Groups and how many of thise groups are electron pair groups creates a different shape. Each variation on the number of Total Groups and how many of thise groups are electron pair groups creates a different shape. Total groups 2 Each variation on the number of Total Groups and how many of thise groups are electron pair groups creates a different shape. Total groups 2 Electron Pair Groups 0 how many of thise groups are electron pair groups creates a different shape. Total groups 2 Electron Pair Groups 0 Linear Shape how many of thise groups are electron pair groups creates a different shape. Total groups 3 2 Electron Pair Groups 0 Linear Shape how many of thise groups are electron pair groups creates a different shape. Total groups 3 2 Electron Pair Groups 0 0 Linear Shape how many of thise groups are electron pair groups creates a different shape. Total groups 3 2 Electron Pair Groups 0 0 Trigonal Planar Linear Shape Total groups Total groups Electron Pair Groups Total groups Electron Pair Groups Shape Total groups 3 Electron Pair Groups Shape Total groups 3 Electron Pair Groups 1 Shape Total groups 3 Electron Pair Groups 1 Bent Shape Total groups 4 3 Electron Pair Groups 1 0 Bent Tetrahedral Shape Total groups 4 4 3 Electron Pair Groups 1 1 0 Trigonal Pyramidal Bent Tetrahedral Shape Total groups 4 4 4 3 Electron Pair Groups 2 1 1 0 Trigonal Pyramidal Bent Bent Tetrahedral Shape Total groups Electron Pair Groups Shape Total groups 5 Electron Pair Groups 0 Trigonal Bipyramidal Shape Total groups 5 5 Electron Pair Groups 1 0 See-Saw Trigonal Bipyramidal Shape Total groups 5 5 5 Electron Pair Groups 2 1 0 T-Structure See-Saw Trigonal Bipyramidal Shape Total groups 5 5 5 5 Electron Pair Groups 3 2 1 0 Linear T-Structure See-Saw Trigonal Bipyramidal Shape Total groups 2 3 3 4 4 4 5 5 5 5 Electron Pair Groups 0 0 1 0 1 2 0 1 2 3 Linear ? Linear Trigonal Planar ? Bent ? Tetrahedral ? Trigonal Pyramidal ? Bent Trigonal Bipyramidal ? Seesaw ? T-Structure ? Shape Trigonal Pyramidal ? Bent ? T-Structure ? Linear ? Trigonal Bipyramidal ? Trigonal Planar ? SeeSaw ? Tetrahedral ? |

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