interactions exam 1 Flashcards
what is an ionic bond
metal + nonmetal atoms
what is a covalent bond
2 nonmetals
what is a metallic bond
2 metals
what are the strong interactions
ionic, covalent, and metallic bonds
what are the weak interactions
van der Waals, hydrogen bonds, electrostatic interactions, hydrophobic interactions
what is a negative ion
non-metal - anion - high electronegativity
what is a positive ion
metal - cation - low electronegativity
what is 3D structure a form of
weak interactions
what do hydrophobic interactions result in
the phospholipid bilayer of the cell plasma membrane
what are the interactions of metals/alloys
metallic (electrons migrate) and ionic in some alloys
what are the interactions of polymers
covalent, weak interactions, sometimes ionic
what are the interactions of ceramics
ionic! and sometimes covalent
what are the interactions of hybrid materials
covalent, ionic, metallic, and/or weak interactions
what are biomaterial properties determined by
both strong and weak interactions - weak can be as strong as strong interactions
what is silicon
metalloid: glass/sand is ionic-like bond and PDMS is covalent-like bond
how do electrons move
electrons in pure metals almost always migrate and do not stay with a specific atom
what are photons
quasiparticles or quantum of energy associated w light/electromagnetic
what are plasmons
quasiparticles or quantum of energy associated w charge/electron density
what are phonons
quasiparticles or quantum of energy associated w mechanical waves
