| periodic table |
Early alchemists understood that certain elements could be grouped together due to the properties that they had. But it was not until the 18th century that Lavoisier tried to classify the known elements. It took another 100 years and a lot of trial and error for Mendeleev to propose a real foundation for the modern periodic table. He arranged the elements in a table according to relative atomic mass and left gaps where an element did not match. ...
출처: www.ch.ic.ac.uk/vchemlib/mol/glossary/
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| periodic table |
The Periodic Table of the Elements is a compilation of the 109 chemical symbols and characteristics. [3: periodic table ]; [ 2:image of periodic table ].
출처: www.ecotao.com/holism/glosoz.htm
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| periodic breathing |
When pauses of up to ten seconds take place in the baby's breathing.
출처: www.kerri.thomas.btinternet.co.uk/glossary.html
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| periodic table |
An arrangement of all known elements, according to their properties
출처: www.learnz.org.nz/steelmaking/glossary/index.php
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| periodicity |
The frequency of load/update/refresh of the data warehouse, eg daily, weekly, monthly.
출처: it.csumb.edu/departments/data/glossary.html
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