Definitions for periodic tableˈpɪər iˈɒd ɪk, ˌpɪər-

This page provides all possible meanings and translations of the word periodic table

Random House Webster's College Dictionary

pe′ri•od′ic ta′bleˈpɪər iˈɒd ɪk, ˌpɪər-(n.)

  1. a table in which the chemical elements, arranged according to their atomic numbers, are shown in related groups.

    Category: Chemistry

Origin of periodic table:

1890–95

Princeton's WordNet

  1. periodic table(noun)

    (chemistry) a tabular arrangement of the chemical elements according to atomic number as based on the periodic law

Wiktionary

  1. periodic table(Noun)

    A tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same column.

Freebase

  1. Periodic Table

    The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations, and recurring chemical properties. Elements are presented in order of increasing atomic number. The standard form of the table comprises an 18-column-by-7-row main grid of elements, with a double row of elements below. The table can also be deconstructed into four rectangular blocks: the s-block to the left, the p-block to the right, the d-block in the middle, and the f-block below that. The rows of the table are called periods; the columns are called groups, with some of these having names such as halogens or noble gases. Since, by definition, a periodic table incorporates recurring trends, any such table can be used to derive relationships between the properties of the elements and predict the properties of new, yet to be discovered or synthesized, elements. As a result, a periodic table—whether in the standard form or some other variant—provides a useful framework for analyzing chemical behavior, and such tables are widely used in chemistry and other sciences. Although precursors exist, Dmitri Mendeleev is generally credited with the publication, in 1869, of the first widely recognized periodic table. He developed his table to illustrate periodic trends in the properties of the then-known elements. Mendeleev also predicted some properties of then-unknown elements that would be expected to fill gaps in this table. Most of his predictions were proved correct when the elements in question were subsequently discovered. Mendeleev's periodic table has since been expanded and refined with the discovery or synthesis of further new elements and the development of new theoretical models to explain chemical behavior.

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