Question

Why did Bohr's model of atoms need to be revised?

Answer 1

Answer: To remedy the stability problem.

Explanation:Bohr modified the rutherford model by requring that the electrons move in orbits of fixed size and energy. Of an electron depends on the size of the orbit and is slower for smaller orbits

Hope this helps

Answer 2

Step-by-step explanation:

However, the model was misleading in several ways and ultimately destined for failure. The maturing field of quantum mechanics revealed that it was impossible to know an electron's position and velocity simultaneously. Bohr's well-defined orbits were replaced with probability “clouds” where an electron is likely to be.