<P> The periodic table is a tabular arrangement of the chemical elements , ordered by their atomic number , electron configurations , and recurring chemical properties . This ordering shows periodic trends , such as elements with similar behaviour in the same column . It also shows four rectangular blocks with some approximately similar chemical properties . In general , within one row ( period ) the elements are metals on the left , and non-metals on the right . </P>
<P> The periodic table is a tabular arrangement of the chemical elements , ordered by their atomic number , electron configurations , and recurring chemical properties . This ordering shows periodic trends , such as elements with similar behaviour in the same column . It also shows four rectangular blocks with some approximately similar chemical properties . In general , within one row ( period ) the elements are metals on the left , and non-metals on the right . </P>
what is a row across the periodic table called
what is a row across the periodic table called
period
period