Q. 504.2( 5 Votes )

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 :

The element X is nitrogen (atomic no. 7) with electronic configuration as 2, 5.


It has 5 valence electrons.


(b) Electron dot structure of diatomic molecule of nitrogen



It has triple covalent bonds.


(c) Electron dot structure of ammonia



It has 3 single covalent bonds.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
NCERT Exemplar | Periodic Classification of ElementsNCERT Exemplar | Periodic Classification of ElementsNCERT Exemplar | Periodic Classification of Elements47 mins
Foundation | Pradeep's H.O.T.S. : Periodic ClassificationFoundation | Pradeep's H.O.T.S. : Periodic ClassificationFoundation | Pradeep's H.O.T.S. : Periodic Classification48 mins
Smart Revision | Identify Me...Smart Revision | Identify Me...Smart Revision | Identify Me...45 mins
Smart Revision | Discussion Periodic Classification of ElementsSmart Revision | Discussion Periodic Classification of ElementsSmart Revision | Discussion Periodic Classification of Elements48 mins
Mnemonics to Learn Modern Periodic TableMnemonics to Learn Modern Periodic TableMnemonics to Learn Modern Periodic Table38 mins
Important Mnemonics to Learn Modern Periodic TableImportant Mnemonics to Learn Modern Periodic TableImportant Mnemonics to Learn Modern Periodic Table48 mins
Smart Revision | Trends of Periodic Table in 35 minutesSmart Revision | Trends of Periodic Table in 35 minutesSmart Revision | Trends of Periodic Table in 35 minutes49 mins
Be a Master of Classification in Reasoning!!Be a Master of Classification in Reasoning!!Be a Master of Classification in Reasoning!!47 mins
Classification of SoilsClassification of SoilsClassification of Soils41 mins
Exploring Periodic TableExploring Periodic TableExploring Periodic Table29 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses