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
He Was King "He Was King" was average. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream critics, the album has received an average score of 63, based on nine reviews. All songs written by Felix da Housecat (Felix Stallings). He Was King He Was King is an album recorded by Felix da Housecat, released worldwide just two days before his 38th birthday on August 25, 2009 via Nettwerk Records. The album was described by Felix as follows, "Whereas "Kittenz and Thee Glitz" was straight up electro, "He Was King" is straight Felix da Housecat pop with a