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What is a periodic table ?

User AaronR
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Answer:

A periodic table is a table filled with chemical elements. They are organised by their atomic number and how many electrons each element contains

User Adam Boduch
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Answer:

The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson.

User Dan Oberlam
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