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Periodic Table and Periodicity question

2003 · Q111
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Periodic Table and Periodicity question

2003 · Q111

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1
The ions O2−-−, F−-−, Na+, Mg2+ and Al3+ are isoelectronic. Their ionic radii show
  1. A
    a significant increase from O2−-− to Al3+
  2. B
    a significant decrease from O2−-− to Al3+
  3. C
    an increase from O2−-− to F−-− and then decrease from Na+ to Al3+
  4. D
    a decrease from O2−-− to F−-− and then increase from Na+ to Al3+.
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