alleryWhich family of elements occupies Group 1 of the modern periodic table?
AAlkali metals
BAlkaline earth metals
CHalogens
DNoble gases
Answer & Solution
Correct answer: A. Alkali metals
1. Group 1 elements have a single valence electron (1s configuration ending in one electron).
2. They are highly reactive metals such as lithium and sodium.
3. This family is called the alkali metals.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 8 Periodic Classification of Elements "Features of Groups", p.116_
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