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Periodic Table and Periodicity question

2007 · Q96
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Periodic Table and Periodicity question

2007 · Q96

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1
With which of the following electronic configuration an atom has the lowest ionisation enthalpy ?
  1. A
    1s2 2s2 2p3
  2. B
    1s2 2s2 2p5 3s1
  3. C
    1s2 2s2 2p6
  4. D
    1s2 2s2 2p5
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