PPT-Electron Configurations of Ions

To write the electron configuration of an ion formed by a main group element Write the configuration for the atom Add or remove the appropriate number of electrons Na 1 s 2 2 s 2 2. e a circuit Pumps packet bits nonstop to destination No intermediate buffer Requires setup and teardown time Multicomputer Network Interface Interface boards usually contain buffer for packets Needs to control flow onto interconnection network when s Which. is the atomic number?. What. does the atomic number tell us?. What. is the mass number?. What. does the mass number tell us?. How many protons does Potassium have?. How. many neutrons?. How. Names of Common Polyatomic Ions. . Ion Name Ion Name. . NH. 4. . +. ammonium. . CO. 3 . 2-. carbonate. *NO. 2. . -. *nitrite . HCO. 3. . -. Energies in Relation to Periodic Table. 3d. 4f. 1s. 2p. http://www.docstoc.com. Energies of Orbitals. E. Hydrogen. ei. Everything other than Hydrogen. Questions: . What . is the difference between the two? Why do you think hydrogen is different?. Shielding and Penetration. Orbitals with radial probability closer to the nucleus are more . penetrating. . . The closer, more penetrating orbitals, are . shielding. the further orbitals from the nucleus. . Electron Configurations. The way electrons are arranged in atoms. Energy Levels (Principle Quantum Number – n). First energy level. Only s sublevel (1 s orbital). Only 2 electrons. 1s. 2. Second energy level. Isotopes. Isotopes. : atoms of the same element that have different numbers of neutrons. Two isotopes of an element will have the same atomic number, but different mass numbers (and atomic masses). CARBON (above right). - Write longhand and shorthand electron configurations. - Apply . Aufbau. Principle, Pauli Exclusion Principle and . Hund’s. Rule to write configurations in orbital diagrams . Bell Ringer Question. Quantum Atomic Theory. Heisenberg (1901-1976). Schrödinger (1887-1961). Einstein (1879-1955). Pauli (1900-1958). Plank (1858-1947). Bohr-Rutherford . vs. Quantum. Similarities. Electrons have discrete amounts of energy. Light is an electromagnetic wave*.. Wave Characteristics. Frequency (. ν. ). : number of waves that pass a point in a given period of time. Total . energy. is proportional to amplitude and frequency of waves. . Valence electrons. Valence electrons. . are . those electrons . that are . lost. . or . gained. . when . elements combine.. Nonmetals. will . gain. electrons . when forming . compounds. They . become . Three rules:. electrons fill orbitals starting with lowest n and moving upwards;. The order is: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d etc.. Orbital Diagram. The . electron configuration. of an atom is a shorthand method of writing the location of electrons by sublevel.. Group. Valence. electrons. General electron configuration. Example using. dots for electrons. 1. 1. 2. 2. 13. 3. 14. 4. 15. 5. 16. 6. 17. 18. 7. 8. Valence electrons are symbolized with dots. . Example:. Respiration. Respiration is a catabolic pathway that is controlled by different enzymes.. It releases energy from a molecule of 6 carbon glucose by breaking it down into smaller, simpler molecules.. Respiration.