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P-1 Periodic Classification of Element — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Periodic Classification of Element2 Marks
Question
Fluorine is the most reactive among the halogens.
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Answer

  • Fluorine has the electronic configuration (2, 7).
  • It requires only one electron to complete the octet.
  • The atomic size of fluorine is the smallest among the halogens. Hence, the nuclear attraction on the outermost electrons is maximum. Hence, fluorine is the most reactive among the halogens.

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