SCTM 2B09 Study Guide - Final Guide: Galvanic Corrosion, Work Hardening, Galvanization

• School: OCAD University
• Department: Liberal Studies
• Course: SCTM 2B09
• Professor: Yasaman Delaviz

Document Summary

Atomic weight= weight average of atomic masses of atoms natural occurring isotopes. Isotopes= atoms of same element having two or more atomic masses. Bohr atomic model= revolve around the atomic nucleus, cannot exist between the orbitals. Valence electrons= outermost shell, participate in bonding between atoms to form atomic and molecular aggregation. Wave mechanical model= both wave length and particle like characteristics, probability of electron being in various locations. Electropositive = giveup, so positive that it needs to share. Electropositive = readily giving up electrons to become positive charged ions. Metals = lose electrons, non metals gain electrons. Atoms lose = positive ion, atoms gain= negative. Dipole- dipole= electrostatic interaction of permanent dipole in a molecule. Hydrogen bonding= strong, special type of dipole dipole interaction that occurs between hydrogen atom and electronegative atom. Wandy cheng proportional limit= end of elastic linear region. Upond reloading, yielding will occur, but now at point unloading began, strengthening material.