His song, The Elements ... in the top left corner of each box in the periodic table. The periodic table is arranged in order of increasing atomic number (left to right, top to bottom).

In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how electrons are arranged in atoms. Groups in the periodic table - AQA ...

or its “atomic number”) determined the correct order of the elements in the periodic table. Atomic weight was closely related to Moseley’s atomic number — close enough that ordering ...