Definition of periodic table in US English:
periodic table
nounˌpɪriˌɑdɪk ˈteɪb(ə)lˌpirēˌädik ˈtāb(ə)l
Chemistry A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
Example sentencesExamples
- When you move down the periodic table, as the atomic numbers increase, the elements become rarer.
- The most basic part of chemical notation is the abbreviations for elements used in the periodic table.
- Going down a column on the periodic table the atomic numbers differ by eight between rows one and two and two and three.
- Inorganic chemistry is the study of the chemistry of all the elements in the periodic table except for carbon.
- This weight is the number assigned to each of the chemical elements in the periodic table.