5.Periodicity and the Electronic Structure of Atoms 0.0 / 5 ? ChemistryPeriodicity and the Electronic Structure of AtomsUniversityNone Created by: kpaul1234Created on: 05-05-21 08:42 Define Radiant Energy Radiant energy is electromagnetic radiation 1 of 11 Define the Electromagnetic Spectrum The electromagnetic spectrum is the range of different kinds of electromagnetic radiation. 2 of 11 Define Frequency of a wave (v) Frequency of a wave is the number of wave peaks that pass by a given point per unit time. Reciprocal units or Hertz Hz 1Hz=1s^-1 3 of 11 Define the wavelength of a wave (lamda) Wavelength of a wave is the distance from one wave peak to the next. 4 of 11 Define the amplitude of a wave. Amplitude of a wave is the height of a wave, measured from the center line between peak and trough. 5 of 11 Describe the photoelectric effect. The photoelectric effect is the ejection of electrons from a metal on exposure to radiant energy. 6 of 11 Define photons. Photons is the smallest amount possible of radiant energy. 7 of 11 State Planck's postulate. The energy of one quantum is related to the frequency of an electromagnetic wave. 8 of 11 Define a quantum A quantum is the smallest possible unit of a quantity. 9 of 11 Define quantized. Quantized is changing only in discrete amounts. 10 of 11 Define a line spectrum Line spectrum are the wavelengths of light emitted by an energetically excited atom. 11 of 11
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