It's not polonium, but the alpha-polymorph of this element adopts a primitive cubic structure where 
It's not polonium, but the alpha-polymorph of this element adopts a primitive cubic structure where the unit cell is stretched along one body diagonal. An atom of this element bound to four iodines is used to test for ammonia and is known as Nessler's reagent. An alternative name for (*) thiols references their affinity for this metal. A common reference electrode contains this element's chloride, calomel. Alloys containing this metal are called amalgams. For 10 points, name this metal which is liquid at room temperature.
It's not polonium, but the alpha-polymorph of this element adopts a primitive cubic structure where the unit cell is stretched along one body diagonal.
mercury [accept Hg]