As part of this effort, Lorente de N&oacute; first synthesized a series of quaternary ammonium compounds, including tetramethylammonium (TEA), which he substituted for monovalent cations (especially sodium) in his studies of the ionic basis of the nerve impulse (1949).
When naming an ionic compound, the cation is written first.
the cation<>is written<>first<>When naming an ionic compound