Periodic table
/ˌpɪɹiˈɒdɪk ˈteɪb(ə)l/ noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same group (column).
"The atomic weight of krypton would accordingly be 81.62; the mean of former determinations is 81.28. This is in accordance with its position in the periodic table, which lies between bromine, 80, and rubidium, 85."
- 2 (chemistry) a tabular arrangement of the chemical elements according to atomic number as based on the periodic law wordnet
Example
More examples"The atomic weight of krypton would accordingly be 81.62; the mean of former determinations is 81.28. This is in accordance with its position in the periodic table, which lies between bromine, 80, and rubidium, 85."
Etymology
The table is termed “periodic” because it follows the periodic law – when chemical elements are arranged in order of increasing atomic number, elements with similar properties recur at intervals.