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

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.

  1. Identify the element X. How many valence electrons does it have?
  2. Draw the electron dot structure of the diatomic molecule of X. What type of bond is formed in
  3. Draw the electron dot structure for ammonia. What type of bond is formed in it?

Answer:

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