Students assigned a portion of the periodic table. Generally, a student is given a column of the main group, but this can easily be varied, depending on the size of the class.
submit Jeopardy-style questions (a statement, to which the "answer" can
be stated in the form of a question) about each element in their
portion of the table. The instructor then breaks the questions into
categories (Alex, I'll take obscure, toxic p-block elements for 500!).
The questions are then written on 3x5 cards, with the name of the
submitter on the back. Depending on class size, the class is then
broken into 2-4 teams. The submitter of a given question is prohibited
from participating when his or her question is posed. All answers must
be given in the form of a question.