Atom to the positively charged nucleus by the attraction created from opposite electric charges. If an atom has more or fewer electrons than its atomic number, then it becomes respectively negatively or positively charged as a whole; a charged atom is called an ion. Electrons have been known since the late 19th century, mostly thanks to J.J. Thomson; see history of subatomic physics for details. Protons have a positive charge and a mass 1,836 times that of the electron, at . The number of protons in an atom is called its atomic number. Ernest Rutherford (1919) observed that nitrogen under alpha-particle
Split the Atom FabricLive.40 released in June 2008. Machine Gun has also been released as part of WipEout HD Fury's soundtrack and appeared in a trailer for the game Far Cry 3. Split the Atom received positive reviews from critics. Skiddle gave the album 4 out of 5 stars, saying "Split The Atom works to satisfy even the most fastidious of music fans." Sputnik Music reviewer Deviant gave the album a 4.5 out of 5 stars, saying "Split The Atom is poised to destroy the lives of clubbers worldwide and invade the senses of anyone brave enough to invest ample time in it."