Question

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

a. not only did the bohr model correctly describe the hydrogen atom and its line spectra, but it also perfectly described more complicated multielectron atoms

b. multiple measurements of the position of hydrogens electron, when its in the ground state, find a range of values, but on average, it is located at a distance of one bohr radius from the proton

c. there are multiple values of n for which the angular momentum of an electron must be zero

d. x-rays are only produced by when an electron in an atom makes a transition from the first excited state to the ground state

e. none of the above statements are true

Answer 1

According to the quantum - mechnical model of atoms, statement (b) is correct one i.e. multiple measurments of the postiton of hydrogens electron, when it is in ground state, find a range of values, but on average, it is located at a distance of one bohr radius from the proton ( nuclues).