Question

Arrange the above statements of different models or principles in chronological order which ultimately leads to the development of the modern structure of an atom.

• A. 1,2,3,4
• B. 2,4,3,1
• C. 4,3,2,1
• D. 2,3,1,4

Answer 1

The correct option is B

2,4,3,1

The correct arrangement of the above statements of different models or principles in chronological order which ultimately leads to the development of the modern structure of an atom is as follows:

1. Energy transition takes place only during the excitation or de-excitation of electrons.
2. Angular momentum of the electrons revolving in different elliptical orbits is quantized.
3. The electron has both particle and wave nature.
4. The probability of finding an electron is maximum at a certain place in space.

Conclusion Statement: Hence, option (b) is the correct answer.