Question 8
[Maximum number: 1]
How many electrons are shared in one molecule of nitrogen and in one molecule of ethene?
nitrogen
ethene
2
12
2
8
6
12
6
8
CAIE IGCSE Chemistry Multiple Bonds in Simple Molecules
Practise drawing double and triple covalent bonds in molecules, balancing shared and non-bonding electrons so every outer shell is complete.
How this is tested
- draw two shared pairs for a double bond or three shared pairs for a triple bond
- complete carbon dioxide, oxygen or nitrogen diagrams with the correct lone pairs on each atom
- use a displayed formula to place single and multiple bonds without adding surplus electrons