Question

explain with example of ammonia molecule has now trajan atom and hydrogen atom attend stable electronic configuration like the nearest inert gas​

Answer 1

Ammonia is made up of 1 atom of nitrogen and 3 atoms of hydrogen. Nitrogen has 8 electrons around it i.e it has 4 electron pairs. These pairs are arranged tetrahedrally. Of the 4 pairs: 1 pair is lone pair. So the resulting shape is trigonal pyramid.