\begin{table}[placement] body of the table \caption{table title} \end{table}
Tables are objects that are not part of the normal text, and are usually "floated" to a convenient place, like the top of a page. Tables will not be split between two pages.
Note that there is an *-form: \begin{table*} ... \end{table*}. This form will put the table in a single column when in two column mode; in one column mode it is identical to the non-* form
The optional argument [placement] determines where LaTeX will try to place your table. There are four places where LaTeX can possibly put a float:
The body of the table is made up of whatever text, LaTeX commands, etc., you wish.
The \caption command allows you to title your table.