Mass number Mass number The mass number (symbol "A", from the German word "Atomgewicht" (atomic weight), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It determines the atomic mass of atoms. Because protons and neutrons both are baryons, the mass number A is identical with the baryon number B as of the nucleus as of the whole atom or ion. The mass number is different for each different isotope of a chemical element. This is not the same as the atomic number ("Z") which denotes the
Same Same But Different Same Same But Different Same Same But Different is a 2009 German film, a love story starring David Kross and Apinya Sakuljaroensuk. It was directed by Detlev Buck. The script follows the Benjamin Prüfer's 2006 autobiographical magazine article, later published as a novel in 2007. The title of "Same Same But Different" is indeed an Asian-English phrase, mainly used in Thailand, although the film is set in Cambodia. The film first premiered at the 62nd Locarno International Film Festival on 13 August 2009. Benjamin (David Kross), a German high school student, is a backpacker on his first major tour. In