Question

Which of the following statements about the quantum-mechanical model of atoms is true?

Not only did the Bohr model correctly describe the hydrogen atom and its line spectra, but it also perfectly described more complicated multi-electron atoms.

Multiple measurements of the position of an electron around an atom in a particular energy state always find the electron is located at the same distance from the nucleus.

There is only one n value for which the angular momentum of an electron must be zero. This occurs for n=1.

Only transitions from the n=2 to the n=1 level in atoms will produce X-rays.

none of the above

Answer 1

Incorrect. Bohy model does not describe perfectly more complicated rouldia eletras atoms inco in violates Heises bong uncontainty principle. failed to explain Leonar & Stark effect. Incorrect, we can only predict the probability. Predicting the position of electron at the same distance wiolates the basic principle of Quwatus mechanies tres un cert ainty principle. o correct. For for n n=d, &= 0 ot, laond, 2,...,nry Incorrect, Transitions from higher energy levels will also produce x-says having more energy than กลac b = กรางว.