Predict the bond angles and shape of a molecule of ammonia.
- There are four (4) groups of electrons around the central nitrogen atom (3 shared pairs and one lone pair of electrons)2) According to electron repulsion theory, the electrons move further away from each other, increasing the distance between them as much as possible.3) Shared pair: Lone pair exerts a greater repulsion and minimises the bond angle further.4) Bond angle- 107 degrees5) Shape- Trigonal Pyramidal This answer is predicted according to valence shells electron repulsion theory (VSEPR).
NB
Related Chemistry A Level answers
All answers ▸What is enthalpy?
Calculate the pH of the solution formed when 30 cm3 of 0.150 moldm-3 aqueous sulfuric acid is added to 30 cm3 of 0.200 moldm-3 aqueous potassium hydroxide at 25 C.
Why do first ionisation energies decrease down a group?
How can you tell if a reaction is endothermic or exothermic? Describe a way of determining if a reaction is exothermic or endothermic using simple laboratory equipment.