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For an element the successive ionisation energy value (in `eV " atom"^(-1)` ) are given below `12.32, 26.84, 44.56, 65.63, 203.9, 251.12, 308.4` The element that satisfies the above values is :A. SiB. CaC. AlD. S |
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Answer» Correct Answer - A Sudden jump is observed between `IE_(4)` and `IE_(5)` thus valence electrons `= 4` configuration of valence shell `= ns^(2)np^(2)` Thus element belongs to p-block with 4 valence electrons |
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