Periodic Table - Ptable

2) Each box represents an element and contains its atomic number, symbol, average atomic mass, and name The elements are arranged

The Periodic Table The periodic table is an organisation of elements arranged in increasing atomic number into a series of columns and rows (

elements An HTML table consists of one table> element and one or more tr>, th>, and td> elements The tr> element defines a table row, the th> element defines a

periodic table ตารางธาตุ : Periodic Table of the Elements