The Password Game requires you to create passwords abiding by specific rules. Sometimes, you need to include a capital letter or a symbol, and in Rule 12, your password must include a two-letter symbol from the periodic table.

While you might think of one or two such symbols, those are also easy to forget if you’re not particularly keen on chemistry. Now, you can relax, as we’ll give you all of the answers for Rule 12: “Your password must include a two-letter symbol from the periodic table”!