Which of the following statements are correct or incorrect according to the Bohr’s atomic model? Give a reason for each statement.
Electrons lose energy while moving in fixed orbits and slowly fall into the nucleus.
False. According to Bohr's model, in a stationary state, the energy of an electron remains constant. Therefore, electrons do not lose energy while moving in fixed orbits and do not fall into the nucleus.
Electrons can exist anywhere around the nucleus with no fixed energy.
False. Electrons do not move randomly around the nucleus. They follow fixed circular paths called stationary states or shells, where each electron has a definite amount of energy.
Electrons revolve around the nucleus in orbits of fixed energy without losing energy.
True. Bohr proposed that electrons revolve in fixed circular paths called stationary states or energy levels, and in these orbits, the energy of an electron remains constant without losing energy.
Electrons can be found between energy levels as they move around the nucleus.
False. Electrons follow fixed circular paths (orbits or shells) with definite energy. They cannot be found between these energy levels as they move around the nucleus.
Explanation
According to the provided context on Bohr's model, electrons do not move randomly but in fixed circular paths called stationary states, orbits, or shells. In each shell, an electron has a definite amount of energy (hence called energy levels), and in a stationary state, the energy of an electron remains constant even though it is in motion. Therefore, electrons do not lose energy and fall into the nucleus, nor can they exist just anywhere or between energy levels.