CHM120H5 Lecture Notes - Lecture 7: Pauli Exclusion Principle, Angular Momentum
Document Summary
The answer is option 1 because the azimuthal number, l, must be at least 1 less than the principal quantum number, n. A node is a region in space with zero probability of finding an electron. It is the result of destructive interference (in a wave) To determine radial nodes, you use the equation. For 3s, s has an l value of 0, so the number of radial nodes would be 3 - 0 - 1. = 2 radial nodes n = 3 l = 0. For 3p, it would be 3 - 1 - 1 = 1 radial nodes. They can be graphically represented by plotting the electron density (probability of finding an electron) on the y axis vs. rlao on the x axis. When y = 0 there is a node. In p orbitals, the term refers to the nodal plane (the plane where there are no electrons to be found)
