Dmitri Mendeleev in his Periodic Table organized elements according to their increasing atomic masses.
He then split the elements into several columns so that elements beside each other had similar properties.
The Periodic Table of elements is a table which groups the elements into group and Periods.
The first scientist to produce the Period Table which produced the modern Periodic Table of elements in use was the Scientist Dmitri Mendeleev.
Dmitri Mendeleev organized elements according to their increasing atomic masses.
He then split the elements into several columns so that elements beside each other had similar properties.
In conclusion, the period table of elements arranges elements into columns and groups such that elements beside each other had similar properties.
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