Are ununtrium, ununpentium, Ununseptium and Ununoctium: complete the seventh row of the scheme and will soon have more friendly names.
Four new chemicals were added to the periodic table of the elements by the International Union of Pure and Applied Chemistry (IUPAC), the non-governmental organization that works to promote and coordinate the advances in chemistry.
The newcomers occupy the seventh row of the table, the schema that is used to order chemical elements according to their atomic number and the amount of electrons in their atomic orbital more energy. The elements have been discovered in recent years by researchers in Japan, Russia and the United States, and are the first to be added since last 2011. Before being transcribed on the table, the IUPAC carries out checks and inspections to ensure the soundness and consistency discoveries announced.
The newcomers occupy the seventh row of the table, the schema that is used to order chemical elements according to their atomic number and the amount of electrons in their atomic orbital more energy. The elements have been discovered in recent years by researchers in Japan, Russia and the United States, and are the first to be added since last 2011. Before being transcribed on the table, the IUPAC carries out checks and inspections to ensure the soundness and consistency discoveries announced.
A group of researchers joined the Institute for Nuclear Research in Dubna, Russia, and the Lawrence Livermore National Laboratory in California, US, has identified the elements 115, 117 and 118. The Riken Institute in Japan instead discovered the 'element 113, leading some evidence more consistent than the other two research groups, which, however, had announced the existence. In all four cases, these synthetic elements, that is, created by man.
For now, the four new arrived not have an official name, and were called temporarily ununtrium (Uut, 113), ununpentium (UUP, 115), Ununseptium (Uus, 117), Ununoctium (Uuo, 118). The final name will be assigned to each element of the group of researchers who discovered it. There are no particular restrictions regarding the choice of the name and symbol to be inserted in the periodic table, as it happened in the first half of the twentieth century for plutonium . Researchers can choose to use the name of a mineral, to a place to refer to the name of one of the discoverers or use more imagination referring to mythological characters.
Kosuke Morita of Riken told the Guardian that his research team hopes to "initiate new research in unexplored territories over the element 119". The chairman of the IUPAC congratulated the researchers and explained that "the chemical community is excited to finally see the periodic table of elements complete until his seventh row."
Each element that appears on the table has its own atomic number: this corresponds to the number of protons that are part of its core. Much of the elements heavier than uranium (which has the atomic number 92) are highly unstable and decay very quickly (as they lose their nuclei and protons energy up to a state of greater stability), often within a few seconds, thus it is becoming very difficult to find in nature. To overcome the problem and to study them, researchers must then re-create in the laboratory by crashing each other atoms, to create new ones with larger nuclei. By studying the way in which atoms decay, they can find out if the collision that produced has or has not brought the desired atomic weight.
When it was theorized for the first time the existence of the element 115, for example , it was thought that it could be part of the so-called "island of stability", a group of heavy elements which are expected to be very stable and thus decay much more slowly . Under this hypothetical feature, the element acquired a reputation among fans of science fiction and among ufologists.He imagined that it could be used in the construction of alien spacecraft and became one of the references in the plots of various video games, such as Tomb Raider III (the meteorite that was to find Lara Croft contained the element 115).
A bachelor’s degree in business administration prepares students for a variety of careers in business and industry, including finance, banking, product development, human resources, manufacturing.