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Which of the following statements do not form a part of Bohr's model of hydrogen atom?

1. Energy of the electrons in the orbits are quantized
2. The electron in the orbit nearest the nucleus has the lowest energy
3. Electrons revolve in different orbits around the nucleus
4. The position and velocity of the electrons in the orbit cannot be determined simultaneously.

Correct answer: The position and velocity of the electrons in the orbit cannot be determined simultaneously.

Solution

Bohr's model does not address the uncertainty principle, which states that the position and velocity of an electron cannot be determined simultaneously. This concept is part of quantum mechanics, introduced later by Heisenberg.

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