alleryStart learning →Which family of elements is highly UNreactive?
ANoble gases
BHalogens
CAlkali metals
DAlkaline earth metals
Answer & Solution
Correct answer: A. Noble gases
1. Noble gases have complete outer electron shells.
2. They have no need to gain or lose electrons.
3. So they hardly form chemical compounds.
4. Hence noble gases are highly unreactive.
_Source: Selina Concise Chemistry ICSE Class 9, Ch 5 'The Periodic Table'_
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