• Thumbnail for Aufbau principle
    quantum chemistry, the Aufbau principle (/ˈaʊfbaʊ/, from German: Aufbauprinzip, lit. 'building-up principle'), also called the Aufbau rule, states that in...
    28 KB (3,054 words) - 00:54, 21 April 2024
  • Thumbnail for Electron configuration
    in which atomic orbitals are filled with electrons. The aufbau principle (from the German Aufbau, "building up, construction") was an important part of...
    60 KB (6,147 words) - 22:00, 18 May 2024
  • Thumbnail for Quantum number
    remainder of the 20th century. Bohr, with his Aufbau or "building up" principle, and Pauli with his exclusion principle connected the atom's electronic quantum...
    30 KB (3,122 words) - 23:06, 1 May 2024
  • congeners of radon at Z = 168, 218, 290, 362, and 460, exactly where the Aufbau principle would predict them to be. Niels Bohr predicted in 1922 the electronic...
    148 KB (15,105 words) - 10:59, 15 May 2024
  • Thumbnail for Periodic table
    sequence in which the subshells are filled is given in most cases by the Aufbau principle, also known as the Madelung or Klechkovsky rule (after Erwin Madelung...
    251 KB (27,187 words) - 01:48, 14 May 2024
  • A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds...
    38 KB (2,641 words) - 14:09, 29 April 2024
  • As an approximate rule, electron configurations are given by the Aufbau principle and the Madelung rule. However there are numerous exceptions; for example...
    58 KB (1,187 words) - 10:46, 3 May 2024
  • Thumbnail for Wolfgang Pauli
    by their recipients. In 1921 Pauli worked with Bohr to create the Aufbau Principle, which described building up electrons in shells based on the German...
    36 KB (3,860 words) - 14:52, 12 May 2024
  • one shell. This is because the subshells are filled according to the Aufbau principle. The first elements to have more than 32 electrons in one shell would...
    28 KB (2,782 words) - 22:45, 4 May 2024
  • Thumbnail for Energy level
    levels are filled first and consistent with the Pauli exclusion principle, the Aufbau principle, and Hund's rule. Fine structure arises from relativistic kinetic...
    22 KB (2,831 words) - 03:08, 12 February 2024
  • component in bones. Progressing towards increase of atomic number, the Aufbau principle causes elements of the period to put electrons onto 4s, 3d, and 4p...
    21 KB (2,173 words) - 05:01, 23 November 2023
  • and 3p subshells. There is a 3d subshell, but—in compliance with the Aufbau principle—it is not filled until period 4. This makes all eight elements analogs...
    24 KB (2,943 words) - 18:37, 21 March 2024
  • Thumbnail for Atomic orbital
    additional details of the atoms (see Electron configuration § Atoms: Aufbau principle and Madelung rule). The number of electrons in an electrically neutral...
    83 KB (10,720 words) - 04:42, 17 May 2024
  • filled before population of the upper sets starts according to the Aufbau principle. Complexes such as this are called "low spin". For example, NO2− is...
    17 KB (1,998 words) - 17:53, 20 January 2024
  • (1–7, ...) 1 2 3 4 5 6 7 8+ Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle By metallic classification Metals alkali alkaline earth transition...
    19 KB (2,475 words) - 11:12, 18 May 2024
  • been calculated to differ considerably from the one predicted by the Aufbau principle. A superheavy atomic nucleus is created in a nuclear reaction that...
    32 KB (6,768 words) - 15:38, 19 December 2023
  • Thumbnail for Heavy metals
    (1–7, ...) 1 2 3 4 5 6 7 8+ Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle By metallic classification Metals alkali alkaline earth transition...
    179 KB (15,069 words) - 00:27, 1 April 2024
  • Thumbnail for Ionic bonding
    orbitals Hybridization Chemical polarity Ioliomics Electron configuration Aufbau principle Quantum numbers Azimuthal quantum number Principal quantum number Magnetic...
    18 KB (2,338 words) - 02:36, 8 February 2024
  • rule: the order in which atomic orbitals are filled according to the aufbau principle. Named for Erwin Madelung. Also known as the Janet rule or the Klechkowski...
    76 KB (10,163 words) - 22:56, 15 May 2024
  • Thumbnail for Ligand
    preferential. Metal ions bound to strong-field ligands follow the Aufbau principle, whereas complexes bound to weak-field ligands follow Hund's rule....
    35 KB (3,307 words) - 13:02, 16 February 2024
  • of actinides monotonically decreases with atomic number (see also Aufbau principle). The shift of electron configurations in the gas phase does not always...
    130 KB (11,594 words) - 05:53, 24 March 2024
  • on the way atomic orbitals are filled in the ground state using the Aufbau principle. Before any two electrons occupy an orbital in a subshell, other orbitals...
    6 KB (787 words) - 21:15, 18 February 2024
  • Thumbnail for Metal
    matter were composed of the principle of sulfur, the father of all metals and carrying the combustible property, and the principle of mercury, the mother of...
    80 KB (10,255 words) - 13:09, 14 May 2024
  • Thumbnail for Mendeleev's predicted elements
    (1–7, ...) 1 2 3 4 5 6 7 8+ Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle By metallic classification Metals alkali alkaline earth transition...
    15 KB (1,587 words) - 17:40, 4 January 2024
  • Thumbnail for History of the periodic table
    element 168); this eighth period was derived from an extrapolation of the Aufbau principle and placed elements 121 to 138 in a g-block, in which a new g subshell...
    90 KB (10,896 words) - 04:25, 2 May 2024
  • (1–7, ...) 1 2 3 4 5 6 7 8+ Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle By metallic classification Metals alkali alkaline earth transition...
    76 KB (9,881 words) - 18:50, 12 April 2024
  • Thumbnail for Henry Moseley
    made the Periodic Table exact. (This was later to be the basis of the Aufbau principle in atomic studies.) As noted by Bohr, Moseley's law provided a reasonably...
    24 KB (2,879 words) - 03:26, 24 November 2023
  • completely filled before population of the higher orbitals according to the Aufbau principle. Complexes such as this are called "low-spin" since filling an orbital...
    11 KB (1,351 words) - 21:54, 31 March 2024
  • (1–7, ...) 1 2 3 4 5 6 7 8+ Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle By metallic classification Metals alkali alkaline earth transition...
    12 KB (859 words) - 02:20, 3 January 2024
  • Thumbnail for Conjugated system
    Each one is occupied by one or two electrons in accordance with the aufbau principle and Hund's rule. Cartoons showing overlapping p orbitals, like the...
    34 KB (4,285 words) - 19:50, 13 May 2024