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pe·ri·od·ic law
[peer-ee-od-ik, peer-]
NOUN [CHEMISTRY.]
1.
the law that the properties of the elements are periodic functions of their atomic numbers.
2.
(originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.
Source: Dictionary.com
periodic law | Define periodic law at Dictionary.com
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en.wikipedia.org/wiki/Periodic_table

The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic ...... Odling alluded to the idea of a periodic law but did not pursue it. He subsequently proposed (in 1870) a valence-based classification of the ...

www.dictionary.com/browse/periodic-law

Periodic law definition, the law that the properties of the elements are periodic functions of their atomic numbers. See more.

en.wikipedia.org/wiki/Periodic_trends

These periodic trends are based on the Periodic Law which states that if the chemical elements are listed in order of increasing ...

chem.libretexts.org/Core/Inorganic_Chemistry/Descriptive_Chemistry/Periodic_Trends_of_Elemental_Properties/The_Periodic_Law

May 23, 2017 ... The periodic law was developed independently by Dmitri Mendeleev and Lothar Meyer in 1869. Mendeleev created the first periodic table and ...

www.merriam-webster.com/dictionary/periodic%20law

Define periodic law: a law in chemistry: the elements when arranged in the order of their atomic numbers show a periodic variation of atomic structure…

www.collinsdictionary.com/us/dictionary/english/periodic-law

Periodic law definition: the principle that the chemical properties of the elements are periodic functions of... | Meaning, pronunciation, translations and examples.

www.thefreedictionary.com/periodic+law

The principle stating that the properties of the elements recur periodically as their atomic numbers increase. American Heritage® Dictionary of the English ...

www.britannica.com/science/periodic-law

Periodic law. chemistry. THIS IS A DIRECTORY PAGE. Britannica does not currently have an article on this topic. Modern version of the periodic table of the  ...