Studied by 6 people
empirical formula
shows us what goes in and what comes out (simplified)
molecular formula
shows EXACTLY how much goes in and comes out (not simplified)
(lewis dot) structural model
shows the atoms, valence electrons, and the type of bond. this is the most common model
ball and stick model
shows the atoms and bonds, which is a quicker version than the most common model
space-filling model
the most accurate representation of what the atoms look like when bonded but shows little useful information
molecules
a single building block created from atoms
compound
the building that creates atoms
covalent bonds
form molecules naturally. if the molecules come together with a different type of atom they will become a larger compound
ionic bonds
never bond with an atom of the same type, so these bonds form compounds naturally and never form molecules, have formula units, electron spends so much time around one atom that it never returns to the original one and is completely transferred
formula unit
the lowest whole number ratio of ions in an ionic compound.
electronegativity difference
found by subtracting the values of both atoms
non-polar
the electron doesn’t favor one atom
polar
the electron will spend more time around one atom (the more electronegative one) than the other
mono
one
di
two
tri
three
tetra
four
penta
five
hexa
six
hepta
seven
octa
eight
covalent bond formulas
prefix
the suffix “ide” for second element
ionic bond formulas
the suffix “ide” for second element
transition metals have a roman numeral
polyatomic bond formulas
if it doesn’t end with “ide”, look at cheat sheet
