Carbon - Wikipedia
WEBAtomic carbon is a very short-lived species and, therefore, carbon is stabilized in various multi-atomic structures with diverse molecular configurations called allotropes. The three relatively well-known allotropes of carbon are amorphous carbon, graphite, and diamond.
Vis kun resultater fra en.wikipedia.orgStructure factor
In condensed matter physics and crystallography, the static structure …
Atomic orbital - Wikipedia
WEBAtomic orbitals are the basic building blocks of the atomic orbital model (or electron cloud or wave mechanics model), a modern framework for visualizing the submicroscopic …
Nitrogen - Wikipedia
WEBNitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the …
List of chemical elements - Wikipedia
WEBLike the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, …
Atomic theory - Wikipedia
WEBThe current theoretical model of the atom involves a dense nucleus surrounded by a probabilistic "cloud" of electrons. Atomic theory is the scientific theory that matter is …
Molybdenum - Wikipedia
WEBIn its pure form, molybdenum is a silvery-grey metal with a Mohs hardness of 5.5 and a standard atomic weight of 95.95 g/mol. It has a melting point of 2,623 °C (4,753 °F), …
Uranium - Wikipedia
WEBUranium is a chemical element; it has symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 …
Periodic table | Definition, Elements, Groups, Charges, Trends,
WEBThe periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the …
Bohr model | Description, Hydrogen, Development, & Facts
WEBBohr model, description of the structure of atoms proposed in 1913 by the Danish physicist Niels Bohr. The Bohr model of the atom, a radical departure from earlier, classical …
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