Chemical element hydrogen and deuterium). Thus, all carbon isotopes have nearly identical chemical properties because they all have six protons and six electrons, even though carbon atoms may, for example, have 6 or 8 neutrons. That is why the atomic number, rather than mass number or atomic weight, is considered the identifying characteristic of a chemical element. The symbol for atomic number is "Z". Isotopes are atoms of the same element (that is, with the same number of protons in their atomic nucleus), but having "different" numbers of neutrons. Thus, for example, there are three main isotopes of carbon. All carbon atoms
What a Mess! What a Mess! What a Mess! () is a 1995 farce comedy film of late post-Perestroyka era directed by Vladimir Menshov. While digging in the mine "Unpromising" in Yakutia an unprecedentedly large diamond was found. It is christened as the "Savior of Russia". Officials proclaim that the sale of the diamond could pay for every Russian citizen to take a three-year-long vacation at the Canary Islands. When the diamond is being transported to Moscow (by Antonov An-124 "Ruslan") it is stolen by the crime boss Kozulskiy (Armen Dzhigarkhanyan), who is then robbed by professional thief Vasiliy Krolikov (Valeri Garkalin). For