Like the other metals, which were grouped into larger bases of four. There were the physical metals: iron, steel, tin, and pewter. The mental metals: bronze, copper, zinc, and brass. And … there were the time-affecting metals: gold and its alloy, and atium and its alloy. That means there’s another metal. One that hasn’t been discovered—probably because atium and gold are too valuable to forge into different alloys.
Mendeleevian deduction
