Question
Study the variation in the atomic radii of first group elements given below and arrange them in an increasing order. Group I elements: Na Li Rb Cs K Atomic radius (pm): $186 \ 152 \ 244 \ 262 \ 231$
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Answer
- Increasing order of the atomic radii:
- Group I elements: $Li< Na< K< Rb< Cs$
- Atomic radius (pm): $152 \ 186 \ 231 \ 244 \ 262$
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