For a particular orbital,as one goes away from the nucleus along the z-axis,the probability density decreases to zero,then increases,and finally decreases without increasing a second time.This is consistent with a A)2s orbital. B)4p_x orbital. C)3forbital. D)4s orbital.

Question

Quizplus · Accepted Answer

The 2s orbital has a spherical symmetry and a nodal plane along the xy-plane. As we move away from the nucleus along the z-axis, the probability density decreases to zero as we cross the nodal plane, then increases as we move further away from the nucleus, and finally decreases without increasing a second time as we approach another nodal plane along the xz- and yz-planes. This behavior is consistent with the description given in the question. Therefore, the best choice is A) 2s orbital.

For a Particular Orbital,as One Goes Away from the Nucleus