A, B, C, D and $$E(Francium$$ is not included in the $$list)$$ are the elements belonging to First group of Modern periodic table. The trend of abundance in earth's crust of these elements is A B C D E. The element ‘C’ in the sequence is

Question

A, B, C, D and $$E(Francium$$ is not included in the $$list)$$ are the elements belonging to First group of Modern periodic table. The trend of abundance in earth's crust of these elements is  A > B > C > D > E. The element ‘C’ in the sequence is

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$$A)$$ Atomic radius…LiNa>K>Rb>Cs;$$C)$$ EN…..Li>Na>$$K=Rb$$>Cs;$$D)$$ MP…Li>Na>K>Rb>Cs;$$E)$$ BP…Li>Na>K>Rb>Cs;$$F)$$ Hardness, Metallic bond strength….Li>Na>K>Rb>Cs;$$G)$$ Metallic character….LiK>Rb>Li>Cs;$$J)$$ Hydration Enthalpy….$$Li+$$>$$Na+$$>$$K+$$>$$Rb+$$>$$Cs+Thus$$ ionic size in aqueous solution…..$$Li+$$>$$Na+$$>$$K+$$>$$Rb+$$>$$Cs+Thus$$ ionic mobility in aqueous solution…..$$Li+Na+$$>$$K+$$>$$Rb+$$>$$Cs+K)$$ $$EM+/M$$° values are negative.Most negative for Li and least negative for Na.$$ELi+/Li$$°most negative

A, B, C, D and E(Francium is not included in the list) are the elements belonging to First group of Modern periodic table. The trend of abundance in earth's crust of these elements is A > B > C > D > E. The element ‘C’ in the sequence is

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