Home › CBSE Class 11 › Chemistry › S Block Elements › Alkali metals have low density because of their:
Alkali metals have low density because of their:
ASmall size
BHigh charge
CHeavy nuclei
DLarge size
Answer & Solution
Correct answer: D. Large size
1. The atoms are big for their mass.
2. That spreads the mass over more volume.
3. So the large size gives low density.
_Source: NCERT Class 11 Chemistry Part II, Unit 10, The s-Block Elements._
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