You and have been magically transported inside an 12 room castle built by the famous chemist, Dmitri Mendeleev. Each room in the castle is made entirely from one of the elements in the periodic table.  No element is repeated.  Each element will appear in the state (solid, liquid, gas) it retains at room temperature.

 

You do not know where in the castle you have been transported.  A holographic image of Mendeleev will accompany you on your journey giving you clues to help you determine which room you are in.  Each time you identify the element a room is made of, you will be transported to another room.  Once you have traveled through all of the rooms, you will find your way out of the Castle Mendeleev.