Polymers - large compound formed from combinations of many monomers
They are covalent
Metals - Elements that are good conductors of electric current and heat.
They are metallic
Ceramics - ionic/mixed ionic-covalent
intermetallics - mixed metallic-ionic
What do proprties of solid materials depend on? - Geometrical atomic arrangement
What is the principle quantum number (n)? - # of atomic shells in Bohr Model
What is subsidary quantum number (l) - s,p,d,f (# of subshells within main energy levels
magnetic quantum number (m sub l) - spatial orientation of the orbital
, What is electronegativity? - ability of an atom to attract electrons
Electronegative elements - readily acquire electrons to become - ions
Electropositive elements - readily give up electrons to become + ions
Electronegativity increases from? - left to right, bottom to top
Atomic bonding properties depend on? - Interatomic forces that bind atoms together
Attractive forces
Repulsive forces
How are electric dipoles created? How do they interact with each other - Asymmetrical distribution of
electron charge. They interact with each other by electrostatic forces
What is a van der Waals bond? - A slight attraction that develops between the oppositely charged
regions of nearby molecules. (the weakest bond)
what is a covalent bond? - A chemical bond formed when two or atoms share electrons.
What is an ionic bond? - A chemical bond that's formed when an atom transfers and electron to another
Atom
What is bonding energy? - bonding energy is average of bond energy of each individual bond between
two atoms.
Crystalline Solid - atoms/ions form a pattern that repeats itself forming crystal-like structures
Unit Cell - crystalline small group of atoms that from repetitive patterm
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