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Manipal MET2020Chemistryp Block Elements (Group 15, 16, 17 & 18)

Neon atom requires energy to remove one electron from its outermost orbit, so also to add one electron into the outermost orbit. Which of the following is correct about fluorine? I. Fluorine releases energy when an electron is removed. II. Fluorine requires energy to add one electron.

Options

  1. A(I) and (II) are correct
  2. B(I) is correct, (II) is false
  3. C(l) is false, (II) is correct
  4. D(I) and (II) are false

Correct answer

D. (I) and (II) are false

Step-by-step solution

(i) Fluorine required energy when an electron is removed, i.e. ionisation energy. (ii) Fluorine releases energy to add one electron, i.e. electron affinity (-328 ~kJ ~mol ⁻¹ )

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