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Match List-I with List-II            List-I                List-II A. Thomson model i. Dual nature of electron B. Rutherford model ii. Atomic theory C. Bohr’s model iii. Plum pudding model D. De-Broglie theory iv. Concept of quantization of energy

Match List-I with List-II            List-I                List-II A. Thomson model i. Dual nature of electron B. Rutherford model ii. Atomic theory C. Bohr’s model iii. Plum pudding model D. De-Broglie theory iv. Concept of quantization of energy Correct Answer A-iii, B-ii, C-iv, D-i

The correct answer is A-iii, B-ii, C-iv, D-i.

Key Points

  • The “plum pudding model” was put forward by J. J. Thomson in 1904.
    • In this model, the atom is made up of negative electrons that float in a “soup” of positive charge.
  • Ernest Rutherford published his atomic theory describing the atom as having a central positive nucleus surrounded by negative orbiting electrons.
    • This model suggested that most of the mass of the atom was contained in the small nucleus and that the rest of the atom was mostly empty space
  • Louise de Broglie suggested that electrons exhibit a dual nature.
    • Broglie also got Physics Nobel Prize for his theory.
  • In 1913, Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus.

Related Questions

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