DiagramModerate1 mark
3(iii)
Element A belongs to group 15 and period 2 of the Periodic Table.
Draw the dot (•) and cross (×) structure of the compound formed in (b) above.
Topic: Chemical bonding: electron-dot structure
Previous-year question practice database
Answer
Solution diagram
Exam answer
Dot-and-cross structure of NH₃: nitrogen forms three single covalent bonds with three H atoms and retains one lone pair.
Explanation
Use the supplied solution image.
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