Question

write about the Ionisation Enthalpy ​

Answer 1

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The ionisation enthalpies of transition elements are intermediate between those of s-block or p-block elements. This suggests that transition elements are less electropositive than elements of group 1 and 2. Depending on the conditions, they form ionic or covalent bonds. Generally in the lower oxidation states these elements form ionic compounds while in the higher oxidation states they form covalent compounds