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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Cite this Entry

“Periodic law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periodic%20law. Accessed 10 May. 2021.

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More Definitions for periodic law

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

More from Merriam-Webster on periodic law

Britannica.com: Encyclopedia article about periodic law

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