| periodic table |
A systematic arrangement of the elements in columns and rows; elements in a given column have similar properties. Periods increase by the atomic number of the elements.
출처: www.hillsdale.edu/AcademicAssociations/Chemistry/s...
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| period |
a unit of geological time; a division of an era.
출처: farahsouth.cgu.edu/dictionary/
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| period |
(See frequency.)
출처: www.keithyates.com/glossary.htm
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| period |
(a) The time required for a complete orbit. (b)The time required for a pendulum to make one to-and-fro swing. In general, the time required to complete a single cycle.
출처: www.nksd.net/schools/nkhs/staff/john_daneau/cp_glo...
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| period |
the interval between consecutive similar stages in a repeating cycle of events.
출처: www.advancedforecasting.com/weathereducation/weath...
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