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Question
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.
- Identify the element X. How many valence electrons does it have?
- Draw the electron dot structure of the diatomic molecule of X. What type of bond is formed in it?
- Draw the electron dot structure for ammonia and what type of bond is formed in it?
Solution
- Element X is nitrogen. Nitrogen has 5 valence electrons.
Nitrogen molecule has covalent bonds in between the nitrogen atoms.
Ammonia molecule ahs covalent bonds between the nitrogen and hydrogen atoms.
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