what doess periodic table signify?

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Solution

"Periodic" means a phenomenon which repeats itself after certain interval. Here, the same meaning has been assigned for periodic table according to which, a periodic table is classification of elements on behalf of similar physical and chemical properties.
Hence, we see that a common property repeats itself in a group after certain elements.
The periodic table actually signifies classification of elements.

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$x$	$y$
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This given table signifies a

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