CHEM 001 Lecture Notes - Lecture 11: Ionic Compound, Nonmetal, Lewis Structure
15 Sep 2020
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Lec3 anything from 1. 5 beyond is fair game for next week"s test. M= magnetic quantum number (orientation of orbital) Ms=spin quantum number (direction electron is spinning) Sometimes they will ask for forbidden sets of quantum numbers. Electron affinity increases across a row it"s the opposite of ionization energy. Electron affinity = energy released when e- added to gas-phase atom. Defined as: eea=e(x)(g) - e(x-)(g) less periodic but generally high electron affinity for elements in top right of periodic table. Note that adding an e- to a filled valence shell is unfavorable and a lot of energy is required. Elements in the periodic table are separated into blocks based on the last occupied subshell (s, p, d, and f blocks) Metals tend to have a positive charge while nonmetals tend to have a negative charge the s block (groups 1 and 2) include all of your super-reactive metals like sodium and calcium.
