This is an exercise in using using and understanding the quantum numbers. When you press "New Question", a question will appear in the top frame. Determine the value of the answer, enter it in the cell and press "Check Answer." Results appear in the second
table. Based upon the nature of the question, you will answer it by entering a number, a string such as "3s" or clicking in from of Y or N(use uppercase). Once you have answered the question appropriately, press "Check Answer" (except of it's a Y or N question ) and the results will appear in the table. Pressing "Show Answer" will cause the correct answer to appear and you will no longer be able to submit an answer to the problem.