chemical bonds Flashcards
what is an ionic bond?
atoms lose or gain electrons between a metal and a non metal
what is a covalent bond?
when a pair of electrons is shared between two atoms - non metals
what is a metallic bond?
the way metal atoms are kept together within a metal material
what is the arrangement of atoms and electrons in metallic bonds?
they are arranged in a regular pattern
what are the limitations of particle theory?
-particles are not solid in real life
-particles are constantly moving
-lack of space between particles and size of particles
how does the structure of ionic compounds affect their properties?
the arrangement of ions in the compound determines whether or not the compound can conduct electricity as well as the melting and boiling point of the compound
how does the structure of small
molecule affect their properties?
the strength of the intermolecular forces between individual molecules determines the melting and boiling point of these small molecules
how do the structure of polymers affects their properties?
the type of monomer used can influence the properties of the polymer
how does the structure of giant covalent structures affect their properties?
they have high melting and boiling points
why are metals good conductors of electricity?
the electrons are free to move in a network of the metal atom
why are alloys harder than pure metals?
the layers of atoms cannot slide over each other
what are fullerenes?
closed cages molecules where carbon atoms form a continuous surface with no dangling bonds
