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 ?

An element X of group 15 exists as diatomic molecule and combines with

1.	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 ?
Answer» Solution : (a) Nitrogen (ATOMIC no. 7) Electronic configuration: 2, 5, it has 5 VALENCE ELECTRONS.