This is an Excel spreadsheet that contains the radial factors of the H-atom wavefunctions for the 1s, 2s, 2p, 3s, 3p, 3d, and 4s orbitals as a function of multiples of the Bohr radius.  Plots are also included of the radial factors (R) vs. r and the radial probability distribution (4πr²R²) vs. r.  These can be used during lecture to illustrate to students how these plots change for each type of orbital, or for different principal quantum numbers, or for changing effective nuclear charge.

­In this activity, students self-organize according to periodic trends. I print out the attached cards onto card stock (each page will contain two) and hand them out to the students (one to each). Generally, we go outside and I shout out periodic trends (i.e. size, polarizability, ionization energy, Z_eff etc.) and the students run to get in line in the correct order.  I have a bell which I ding if correct, and a buzzer that I sound if incorrect. If incorrect, they have to try again.