Chemistry different mass numbers are known as isotopes. For example, all atoms with 6 protons in their nuclei are atoms of the chemical element carbon, but atoms of carbon may have mass numbers of 12 or 13. The standard presentation of the chemical elements is in the periodic table, which orders elements by atomic number. The periodic table is arranged in groups, or columns, and periods, or rows. The periodic table is useful in identifying periodic trends. A "compound" is a pure chemical substance composed of more than one element. The properties of a compound bear little similarity to those of
Same Same But Different a nightclub in Phnom Penh, he meets a young local girl, Sreykeo (played by Apinya Sakuljaroensuk), and rapidly falls in love with her. Ben opts for this love, even though Sreykeo turns out to be HIV positive and seems to be a prostitute. It is based on the true story of Sreykeo Sorvan and Benjamin Prüfer. "Same Same But Different" was shown at the 62nd Locarno International Film Festival on 13 August 2009; and entered in the festival competition, the "Variety Piazza Grande Award". This award is conferred by critics from the American entertainment magazine Variety to films that it