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What is izontion energy ?how does it change in the group |
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Answer» The ionization energy of the ELEMENTS increases as one moves up a given group because the ELECTRONS are held in lower-energy orbitals, closer to the nucleus and THUS more tightly BOUND (harder to remove). you move down a group, first ionization energy decreases. WHY? Electrons are further from the nucleus and thus easier to remove the outermost one. 2) As you move across a PERIOD, first ionization energy increases. |
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