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Erase the elements with atomic numbers 19, 37 and 555 (a) form cubic chloride salts with the coordination number of cation being 6 (b) form ionic fluorides with
Erase The elements with atomic numbers 19, 37 and 555 (A) form cubic chloride salts with the coordination number of cation being 6 (B) form ionic fluorides with general formula MF (C) have lowest density of solids in their respective periods (D) have lowest ionization energy in their respective periods
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Abhijeet Gaurav Best Answer
Answer is B,C,D options. They form fluorides because the Fluorine being highly electronegative forms the bond with general formula MF. They have lowest density because of vacant shells. Have lowest ionisation energy because they have a new shell with 1e- in it & this it can be readily ionized .