Period 6 element between barium and hafnium, and radium and rutherfordium, respectively. This convention is entirely a matter of aesthetics and formatting practicality; a rarely used wide-formatted periodic table inserts the lanthanide and actinide series in their proper places, as parts of the table's sixth and seventh rows (periods). Lanthanum is a chemical element with the symbol La and atomic number 57. It is the first element in the lanthanide series. It is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. It is the eponym of the lanthanide series,
Hey! Ba-Ba-Re-Bop the chart. Once Humes' record had become a hit, Decca Records rushed Lionel Hampton into the studio to record a similar song, which became "Hey! Ba-Ba-Re-Bop". Their arrangement was similar to Jim Wynn's but added a call and response element between Hampton and his musicians, and replaced Humes' salacious verses with nonsense rhymes like: "Matilda Brown told old King Tut, 'If you can't say rebop keep your big mouth shut', say hey ba-ba-re-bop...". Hampton was already a popular and established musician, at a bigger company than Humes' Philo, and his version soon knocked Humes off the charts and went to