Atomic number consistent with the modern practice of ordering the elements by proton number, "Z", but that number was not known or suspected at the time. A simple numbering based on periodic table position was never entirely satisfactory, however. Besides the case of iodine and tellurium, later several other pairs of elements (such as argon and potassium, cobalt and nickel) were known to have nearly identical or reversed atomic weights, thus requiring their placement in the periodic table to be determined by their chemical properties. However the gradual identification of more and more chemically similar lanthanide elements, whose atomic number was not
Atomic Tom Atomic Tom Atomic Tom is an alternative rock band originally from Brooklyn, New York, now living in Los Angeles, California, consisting of Luke White (lead vocals), Eric Espiritu (guitar, background vocals), Ethan Mentzer (bass, background vocals), and Tobias Smith (drums, background vocals). The band have released two albums, two EPs and a number of singles. In 2005 the original band released its debut EP called “Anthems for the Disillusioned,” which contained five songs. In 2007 they released the single, “You Always Get What You Want” b/w “Play That Dirty Girl.” In January 2010 the band signed to Universal Republic Records.