are mixtures composed of 2 or more elements, one of which is a metal.
s the lowest whole-number ratio of ionic compound.
an expression that indicates the number and type of atoms present in the smallest representative unit of a substance
the number of ions of opposite charge that surround each ion in a crystal
the electrostatic attraction that binds oppositely charged ions together
a compound composed of positive and negative ions
the force of attraction that holds metals together; it consists of the attraction of free-floating valence electrons for positively charged metal ions
atoms react by gaining or losing electrons so as to acquire the stable electron structure of a noble gas, usually eight valence electrons
an electron in the highest occupied energy level of an atom
Body centered cubic
every atom has 8 neighbors (8 other sodiums around it) (B kinda looks like an 8) ex. Na, K, Fe
Face centered cubic-
every atom has 12 neighbors (ex. Cu Ag Au)
c) Hexagonal close-packed-every atom has 12 neighbors.
every atom has 12 neighbors.
Cu and Zn
Cu and Ag
Fe Cr C N