A mnemonic is a memory aid device designed to improve recall. Mnemonics are popular tools in the classroom because help teachers and students to summarize large amounts of information without necessarily explaining facts. Conversely, mnemonics based on fallacies and blunders, or divorced from experimental results, can cause students more harm than good in their undergraduate studies.
At the time of writing, one cannot find in the chemical literature a straightforward mnemonic for writing electron configurations according to the Rydberg Rule. The purpose of this tutorial is to present such a novel mnemonic and, in the process, help chemistry students to properly write electron configurations.