Which of the following element has the smallest size in its group?(a) sodium(b) rubidium(c) potassium(d) lithiumI have been asked this question in an international level competition.I'd like to ask this question from s-Block Elements in portion s-Block Elements of Chemistry – Class 11

Which of the following element has the smallest size in its group?(a)

1.	Which of the following element has the smallest size in its group?(a) sodium(b) rubidium(c) potassium(d) lithiumI have been asked this question in an international level competition.I'd like to ask this question from s-Block Elements in portion s-Block Elements of Chemistry – Class 11
Answer» Right answer is (d) lithium To EXPLAIN: The ELEMENT Lithium whose atomic number is given by 3 is the smallest element in its group that is alkali METALS by size. This is one of the reasons why it has anomalous BEHAVIOR in the PERIODIC table comparatively.

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