periodic table

periodic table   Dan periodic table

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

This visualization offers a brief history of the periodic table For convenience, elements are represented throughout by their abbreviations In 1869, Russian chemist Dmitri Mendeleev created the framework that became the modern periodic table, leaving gaps for elements that were yet

1365 ปตท Mendeleev discovered the periodic table while attempting to organise the elements in February of 1869 He did so by It is called periodic because elements are lined up in cycles or periods From left to right elements are lined up in rows based on their atomic number (the