Which of the following statements is/are wrong?

Options

A. If the value of l=0, the electron distribution is spherical
B. The shape of the orbital is given by magnetic quantum number
C. Angular momentum of 1s, 2s, 3s electron are equal
D. In anatom, all electron travel with the same velocity

Answer

A, C

Explanation

B is wrong because shape is given by azimuthal quantum number and magnetic quantum number tels the orientation. D is wrong because electrons in different shells travel with different velocities.
Hence a and c are the correct answer.