It is more dense than potassium despite being located above it on the periodic table, where it is below lithium.
This element can be used by itself or in an alloy with potassium for liquid metal cooling in submarine nuclear reactors. Its spectrum is notable for its two D-lines, and it can be created along with hydrogen in carbon fusion. Its hypochlorite is bleach, and its hydroxide is caustic soda. Three ions of this element are pushed out of a cell for every two potassium ions pulled in to maintain resting potential in animal cells by their namesake pumps. It is more dense than potassium despite being located above it on the periodic table, where it is below lithium. Name this alkali metal that bonds with chlorine to form table salt.
This element can be used by itself or in an alloy with potassium for liquid metal cooling in submarine nuclear reactors.
sodium