periodic law

noun

Definition of periodic law 

: a law in chemistry: the elements when arranged in the order of their atomic numbers show a periodic variation of atomic structure and of most of their properties

First Known Use of periodic law

1872, in the meaning defined above

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The first known use of periodic law was in 1872

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periodic law

noun

Medical Definition of periodic law 

: a law in chemistry: the elements when arranged in the order of their atomic numbers show a periodic variation of atomic structure and of most of their properties

called also Mendeleev's law

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