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Unit2atomicstructure
| Term | Definition |
|---|---|
| atomic emission spectrum | The variety of frequencies of electromagnetic radiation (light) seen through a spectroscope that are emitted by electrons as they transition from higher to lower energy levels; unique for each element. |
| atomic radius | measurement from the center of the atom to the outer most electron |
| electromagnetic spectrum | the range of wavelengths or frequencies over which electromagnetic radiation extends |
| electronegativity | the tendency of an atom participating in a covalent bond to attract the bonding electrons |
| frequency | the number of times a point on a wave passes a fixed reference point in one second |
| hyphen notation | An isotope's hyphen notation begins with the element's name, followed by a hyphen, and then the mass number, which is the sum of the protons and neutrons in the nuclei of their atoms. |
| ionic radius | the distance from the nucleus of an ion up to which it has an influence on its electron cloud |
| ionization energy | the amount of energy required to remove an electron from an isolated atom or molecule |
| isotope | the same number of protons but different numbers of neutrons. |
| planck's constant | fundamental universal constant that defines the quantum nature of energy and relates the energy of a photon to its frequency |
| valence electron | a single electron or one of two or more electrons in the outer shell of an atom |
| wavelength | the distance between any given point and the same point in the next wave cycle |
Created by:
tvt
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