Explain why only the lone pairs on the central atom are taken into consideration when predicting...

Explain why only the lone pairs on the central atom are taken into consideration when predicting molecular shape.

Is it because lone pairs have greater repulsion than bonded electrons? if so, why do electrons on outter atoms not determin the shape of the molecule?

Solutions

Expert Solution

The shape of a moleculed is determined by the most stable configuration i.e. configuration where repulsive force is minimum.The magnitude of repulsive force between electron pair follows the following order:bond pair-bond pair<bond pair-lone pair<lone pair-lone pair.Since repulsive force is maximum between lone pairs,the molecule assumes a shape where the lone pairs on the central atom are at maximum distance from each other for achieving the most stable configuration.

Since electrons on outer atoms are bonded to central atom,the repulsive force between the bonded pairs is less significant compared to that between lone pairs.Hence ,lone pairs on central atom play a decisive role in determining the shape of a molecule.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

How many lone pairs are on the central atom in BCl3?

A) How many lone pairs are on the central atom in BCl3? Express your answer numerically as an integer. B)How many lone pairs are on the central atom of BrF3? Express your answer numerically as an integer.

1. Give the number of lone pairs around the central atom and the molecular geometry of...

1. Give the number of lone pairs around the central atom and the molecular geometry of SeF4. Question 1 options: 0 lone pairs, tetrahedral 1 lone pair, distorted tetrahedron (seesaw) 1 lone pair, square pyramidal 1 lone pair, tetrahedral 2 lone pairs, square planar Save Question 2 Give the number of lone pairs around the central atom and the geometry of the ion SeO42–. Question 2 options: 0 lone pairs, square planar 1 lone pair, square pyramidal 1 lone pair,...

Find point number of electron groups around central atom? Polarity? Number of Lone pairs for central...

Find point number of electron groups around central atom? Polarity? Number of Lone pairs for central atom? Lewis dot structure? Approximate bond angles? Electron pair arrangement around central atom/shape of the molecule? Hybridization of central atom? Symmetry elements and Points groups of compounds below. a) NF3 b) XeO3 c) SCl2

How many lone pairs of electrons will be on the central atom in the correct Lewis structure for PBr3?

How many of the following have lone pairs on the central atom? NCl 3 SO 2...

How many of the following have lone pairs on the central atom? NCl 3 SO 2 CO 2 CH 4 0 1 2 3 4 A 0.529 g sample of gas occupies 125 mL at 600 mmHg and 25°C. What is the molar mass of the gas? 110 g/mol 11 g/mol 81 g/mol 130 g/mol What period 3 element is described by the following ionization energies (all in kJ/mol)? IE1 = 1012 IE2 = 1900 IE3= 18010 Mg Cl P S Si...

In AX3, the central atom A forms three single covalent bonds and has two lone pairs....

In AX3, the central atom A forms three single covalent bonds and has two lone pairs. What is the molecular geometry of the molecule? What will be molecular geometry if A has three lone pairs? Why? Predict whether the molecule is polar or nonpolar in both these cases. What type of hybridization will the central atom undergo when A has three lone pairs in the molecule described in (a) above? Can hybridization explain the paramagnetic behavior of molecules? Justify your...

Why does the lewis dot structure for NO2 have the lone pair on the nitrogen atom?...

Why does the lewis dot structure for NO2 have the lone pair on the nitrogen atom? How does that adhere to the formal charge guidelines?

I need the # electron pairs groups around the central atom for: OS2, CS2, PF6-, ICl4-,...

I need the # electron pairs groups around the central atom for: OS2, CS2, PF6-, ICl4-, XeOF4, BF4-, H3O+, AlH4-, Nf3, PH4+, SeO3 2-, SnCl2, SeCl4, CH2O, NO2-, ICl2-, BrF5, and AlCl6 3-.

what are the consideration and the requirements of the environmental part that should be taken when...

what are the consideration and the requirements of the environmental part that should be taken when designing a bridge over a river in regards to the feasibility study. As I am required to write a feasibility study about the environmental when designing the bridge over a river connecting two residential areas.

Customer demand is the only important factor that should be taken into consideration during the planning...

Customer demand is the only important factor that should be taken into consideration during the planning stage of production. Justify your stance and explain why.

Subjects