* Shape: The central nitrogen atom is bonded to three hydrogen atoms, forming a pyramid with the nitrogen at the apex.

* Bonding: The nitrogen atom has five valence electrons, three of which are used to form single covalent bonds with the three hydrogen atoms. The remaining two electrons form a lone pair.

* Hybridization: The nitrogen atom undergoes sp³ hybridization, resulting in four sp³ hybrid orbitals. Three of these orbitals form sigma bonds with the hydrogen atoms, while the fourth orbital contains the lone pair.

* Bond angles: The H-N-H bond angles are approximately 107°, slightly less than the ideal tetrahedral angle of 109.5° due to the repulsion between the lone pair and the bonding pairs of electrons.

Here's a visual representation:

[Image of Ammonia Molecule](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Ammonia-3D-balls.png/220px-Ammonia-3D-balls.png)

Key features:

* Polar: Ammonia is a polar molecule due to the uneven distribution of electron density caused by the lone pair on the nitrogen atom.

* Hydrogen bonding: The lone pair on the nitrogen atom allows ammonia to form hydrogen bonds with other ammonia molecules or with water molecules.

* Basic: Ammonia is a weak base because the lone pair on the nitrogen atom can accept a proton.

Let me know if you'd like more information about ammonia!