OC12 stands for Optical Carrier 12. OC1 through OC192 and greater bandwidths are standard rates of measurement for the speed of fiber-optic cable Internet connections. High-speed OC12 network cable provides a transmission rate equal to that of OC1 (51.84 megabits per second) times 12, which equals 622.08 megabits per second.
Internet bandwidth connections between OC3 and OC12 are usually sufficient for the needs of small- and medium-sized businesses. Internet service providers require higher-speed bandwidths and may use one or more OC48 cable connections. The highest-speed bandwidth connections of OC192 and greater are used by the Internet backbone, which links the world's largest networks.Learn More
Carbon dioxide is a compound made up of the elements carbon and oxygen. Its chemical formula is CO2, which specifies that one molecule of CO2 contains one carbon atom and two oxygen atoms.Full Answer >
The Bohr model of a silicon atom includes notations for 14 protons and 14 neutrons in the nucleus plus designations for three concentric circles for electrons. The inner circle contains two electrons, the middle circles have eight electrons and there are four valence electrons on the outer circle. Electrons appear as small dots on the Bohr model.Full Answer >
Iron has two valence electrons. The atomic number or iron is 26, and it has 26 electrons and 26 protons. The electron configuration of iron is 1s22s22p63s23p63d64s2 or 2, 8, 14, 2 electrons per shell, so an atom of iron has two electrons in the outermost shell.Full Answer >
Lithium iodide is an ionic compound in which there is one lithium ion for every iodide ion. It has the chemical formula LiI. Lithium iodide is also sometimes called lithium(I) iodide.Full Answer >