Frequency (ν) is the number of cycles of a periodic phenomenon divided by time. Hertz (Hz) is the SI derived unit, with a special name, for frequency, equal to s-1. It was named after the German scientist Heinrich Hertza (1857-1894).
Generalic, Eni. "Frequency." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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Periodic Table