Mug Periodic Table

You can impress your friends by saying that given the right conditions hydrogen could be experienced as a metal and you can work this out simply by looking at its position at the top of the alkali metal column on the periodic table. The sudden deathly silence which will fall after you make this statement should be treated as a natural break for making a cup of coffee. Once you've salvaged the friendship you can think hard about telling them that in actual fact you'd need to create a level of pressure higher than that which exists at the centre of the earth in order for metallic hydrogen to potentially form. But you might be better off making more coffee.