Empirical & Molecular Formulas

%Comp, Density, %Error

Moles & Molar Conversions

Particles could be substituted with molecules, atoms, or compounds.

Significant Digits!

Ions & Electron Configurations

VSEPR Shapes

VSEPR stands for:

Valance
Shell
Electron
Pair
Repulsion

Basically, this means that the electrons in the outermost shell repel each other and try to be as far apart as possible. When finding the shape then, you need to know how many bonds/electron pairs are around the center atom.

Periodic Table Trends