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NEET2001ChemistryStructure of AtomActual

The electronic configuration 1 s^2 2 s^2 2 p^5 3 s^1 shows

Options

  1. Aground state of fluorine atom
  2. Bexcited state of fluorine atom
  3. Cexcited state of neon atom
  4. Dexcited state of ion O ₂⁻

Correct answer

C. excited state of neon atom

Step-by-step solution

The ground state electronic configuration of neon atom (Z=10) is : 1 s^2, 2 s^2, 2 p^6 Therefore first excited state of Neon will be : 1 s^2, 2 s^2, 2 p^5, 3 s^1

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