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types of solids

chemistry

TermDefinition
solids have particles arranged in a fixed geometric pattern
how solids can differ different types of properties, different types of forces holding the particles together
ionic solids a metal bonded to a nonmental; oppositely charged ions, high melting point; poor conductors as solids but good conductors as liquids
metallic solids delocalized electrons; "sea of mobile electrons"; positive nuclei surrounded by delocalized electons; good conductors as solids; high melting and boiling points; moblie electrons; malleable and ductile
molecular solids covalent bonds of 2 nonmetal atoms; exists as seperate molecules held together by weak intermolecular forces; soft, low melting and boiling point; poor conductors
network solids covalent bonds of 2 nonmetal atoms; exists as large macromolecules held together by covalent bonds; high melting and boiling points, poor conductors
4 types of network solids diamond and graphite (carbon); SiO2; SiC
dipole-dipole forces exist between polar molecules;oppositely charged ends of molecules attract one another like magnets
van der waal's forces exists between nonpolar molecules; caused by frandom electron movement creating tiny temporary dipoles; very weak froces; molecules with larger molecular masses have stornged van der waal's forces
hydrogejn bonding an extremely strong dipole-dipole attraction; occurs between molecukes where hydrogen is bonded to flourine, oxygen, or nitrogen; used to explain the high boiling point of water
Created by: samhollanddd
 

 



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