Symbols are the first two letters or the first and third letters of the name of the element that are used in chemical formulas and equations to identify the presence of an element. Initially the symbols of the known elements were from the Latin. Nowadays most symbols of the elements stem from the English word. Identify the distinction between molecular and structural formulas and how molecular models are used. Structural Formulas- Formulas that identify the type of bonding between atoms as well as the shape of the molecule.
Molecular models show the spatial arrangement and the connectivity of atoms to one another.
Define and list the molecular elements. Molecular elements- elements that exist as molecular units of two or more of the same type of atom. Determine the symbol on an ion when given the numbers of sub-atomic particles involved. Predict the charge on a mono-atomic ion using the Periodic Table. Determine the empirical formula of an ionic compound when given the ions involved.