alleryWhich group contains the noble gases?
AGroup 1
BGroup 2
CGroup 17
DGroup 18
Answer & Solution
Correct answer: D. Group 18
1. Noble gases have a complete outer electron shell.
2. They have 8 valence electrons (helium has 2).
3. Elements with this electronic configuration sit in Group 18.
4. So noble gases belong to Group 18.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 1 'Periodic Table' (aplustopper.com extract)_
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