This element is used to separate the isotopes lithium 6 and lithium 7 in the COLEX process. A compound of this metal, carbon, and hydrogen can lead to neurological damage when ingested in Minamata disease. Polarography (10[1])uses (10[1])a “dropping” electrode of this element, whose chloride, known as calomel, is used in many (10[1])other electrodes. (-5[1])This element’s sulfide forms the mineral (10[1])cinnabar, (10[1]-5[1])which (10[1])is used in the pigment vermillion. The non-metric (-5[1])“torr” unit of pressure (10[1])is approximately equal to 1 millimeter of this element. (10[1])For 10 points, amalgams contain what metallic element that is a silvery liquid at room temperature? ■END■ (10[2])