CHM151Y1 Chapter Notes -Lone Pair, Ionic Compound, Metalloid
Document Summary
Satp: standard ambient temperature and pressure ( 100kpa and 25 degrees c) Stp: standard temperature and pressure (101. 325kp and 0 deg c) Iupac: intn"l union of pure and applied chem (approves, makes chem names symbols, etc. Representative elements: an element in any of groups 1,2,13-18. Energy level: a space with definite and fixed energy in which an electron is. Orbit: circular/spherical path in which the electron can move around the nucleus. Electron cloud: the region of an atom in which there is a probability that an allowed to move electron exists. Quantum mechanics: theory of the atom in which electrons are described in terms of their energies/probability patterns (model looks like smoke around a circle) Principal quantum # (n from 2n^2 formula for max # e- per level): # specifying the theoretical energy lvl of an elctron in the atom. Avg atomic mass: weighted avg of masses of an atom"s isotopes.
