Classes of metals Classes of metals Class A metals are metals that form hard acids. Hard acids are acids with relatively ionic bonds. These metals, such as iron, aluminium, titanium, sodium, calcium and the lanthanides, would rather bond with fluorine than iodine. They form stable products with hard bases, which are bases with ionic bonds. They target molecules such as phospholipids, nucleic acids and ATP. Class B metals are metals that form soft acids. Soft acids are acids with relatively covalent bonds. These metals, such as lead, gold, palladium, platinum, mercury and rhodium, would rather bond with iodine than fluorine. They form stable
I Was the King, I Really Was the King Greenhouse" and "East St O'Neill" as standout tracks, and ended his review with a short summation of the album's overall sound; "Horns parp convincingly, guitars swagger rather than stagger, choruses seem to have some idea of where they want to be in 30 seconds' time and Animals That Swim emerge as – gasp! – actual, potential pop stars". I Was the King, I Really Was the King I Was the King, I Really Was the King is the second album by British alternative rock band Animals That Swim, released in June 1996 via Elemental Records. Its title is taken from