An element X of group 15 exists as diatomic molecule and combines with hydrogen at 773 K in presence of the catalyst to form a compound, ammonia which has a characteristic pungent smell
(a) Identify the element X. How many valence electrons does it have ?
(b) Draw the electron dot structure of the diatomic molecule of X. What type of bond is formed in it ?
(c) Draw the electron dot structure for ammonia and what type of bond is formed in it ?

Explanation

(a) Nitrogen (atomic no. 7)
Electronic configuration: 2, 5, it has 5 valence electrons.