The periodic table is an arrangement of all 118 elements known to man in accordance with their increasing atomic number and recurring chemical properties. They are assorted in a tabular arrangement wherein a row is a period and a column is a group. Periodic Table Educational Wall Chart is an ultimate reference tool and lab partner for any science student. Ideal for ages 5-16Both side laminatedDurableTear resistant48 x 73 cmUpdated edition Extremely useful this wall chart is ideal for science labs, classrooms, or any study centre. It will help the learners easily spot groups of elements; learn their atomic number, weight, symbol, and name.