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t2: Atomic structure

TermDefinition
1 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.
2 atomic radius Atomic radius is generally stated as being the total distance from an atom's nucleus to the outermost orbital of electron
3 electromagnetic spectrum Therange of wavelengths or frequencies over which electromagnetic radiation extends.
4 electronegativity Electronegativity is defined as the tendency of an atom participating in a covalent bond to attract the bonding electrons.
5 frequency Frequency is the number of occurrences of a repeating event per unit of time
6 hyphen notation A way of designing the isotopes of an element using its name (or symbol), a hyphen, and the mass number (example: uranium-238)
7 ionic radius A measure of the size of an ion of an element in a crystal
8 ionization energy The amount of energy required to remove an electron from an isolated atom or molecule.
9 isotope Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties.
10 planck's constant A constant value that relates the energy of a photon of light to its frequency
11 valence electron Is a negatively charged particle, located in the outermost shell of an atom, that can be transferred to or shared with another atom.
12 wavelength Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
Created by: ja472174
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