Periodic table of elements

element table  All 118 Elements on the Periodic Table · H - Hydrogen · He - Helium · Li - Lithium · Be - Beryllium · B - Boron · C - Carbon · N 2) Each box represents an element and contains its atomic number, symbol, average atomic mass, and name The elements are arranged

Mendeleev discovered the periodic table while attempting to organise the elements in February of 1869 He did so by Mendeleev discovered the periodic table while attempting to organise the elements in February of 1869 He did so by

Select the component elements in the periodic table below, then choose the desired system from the panel on the right  Periods are the rows of the periodic table, groups are the columns Every element has a unique combination of period and group, and a unique atomic number