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Doctors Medicines MCQs Q&A

  1. Walther Kossel
  2. Niels Bohr
  3. Peter Debye
  4. Gilbert N. Lewis
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1 Answers

Option 4 : Gilbert N. Lewis

The correct answer is Gilbert N. Lewis.

  • Gilbert N. Lewis was an American scientist known for a number of concepts and theories in the field of chemical thermodynamics, photochemistry, and quantum physics.
  • Some of his notable works are Covalent bond, Lewis dot structures, Valence bond theory, Electronic theory of acids and bases, chemical thermodynamics, isotope separation, etc.
  • The first description of covalent bonding was provided by Gilbert N. Lewis in terms of the sharing of electron pairs between atoms and he related the process to the attainment of noble gas configurations by reacting atoms as a result of sharing of electrons.
  • He coined the term Photon in the year 1926.

  • It was only in 1916 when Walther Kossel and Gilbert N. Lewis succeeded independently in giving a satisfactory explanation about the formation of chemical bonds in terms of electrons.

  • Walther Kossel was a German physicist best know for his theory on the chemical bond.
    • Some of his notable works are Sommerfeld–Kossel displacement law of atomic spectra, Kossel-Stranski model for crystal growth, and Kossel effect.
  • Niels Bohr was a Danish physicist best known for the Bohr model of the atom.
    • He was the recipient of  the Nobel Prize in Physics in the year 1922 for the contribution to the understanding of the atomic structure and quantum theory
  • Peter Debye was the Dutch chemist who best knows his work on X-ray diffraction and dipole moments.
    • Some of his notable works are the Debye model, Debye relaxation, Debye frequency, Debye–Huckel equation, Debye-Waller factor​ , etc.
    • He was the recipient of the Nobel prize in the year 1936 for his work on X-ray diffraction and dipole moments.
    • The magnitude of the dipole moment is given in Debye units to honor him.
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