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IE_2 values of alkaline earth metals are much smaller than those of alkali metals. Explain. |
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Answer» Solution :`IE_(1)` of ALKALINE earth metals gt `IE_(2)` of alkali metals. (ii) `IE_(2)` of alkaline earth metals lt IE, of alkali metals. (iii) This occurs because in alkali metals the second electron is to be removed from a which has already ACQUIRED a noble gas configuration. (iv) In the CASE of alkaline earth metals, the second electron is to be removed from a monoval cation, which still has one electron in the outermost SHELL. (V) Thus, the second electron can be removed more easily in the case of group 2 elements than in group 1 elements. |
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