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Chapter 4 Vocabulary: Electron Arrangement

Name: _______________________________

Date: ____________________
Across
The emission of electrons from a material when light of certain frequencies shines on the surface of the material.
A state in which an atom has more energy than it does at its ground state.
The study of the structure and behavior of the atom and of subatomic particles from the view that all energy comes in tiny, indivisible bundles.
One of the elements of Group 18 of the periodic table (He, Ne, Ar, Kr, Xe, Rn); they are unreactive.
A unit or quantum of light; a particle of electromagnetic radiation that has zero rest mass and carries a quantum of energy.
The principle that states that two particles of a certain class cannot be in exactly the same energy state.
The distance from any point on a wave to an identical point on the next wave.
Down
The arrangement of electrons in an atom.
The principle that states that the structure of each successive element is obtained by adding one proton to the nucleus of the atom and one electron to the lowest-energy orbital that is available.
A number that specifies certain properties of electrons.
The rule that states that for an atom in the ground state, the number of unpaired electrons is the maximum possible and these unpaired electrons have the same spin.
The lowest energy state of a quantized system.
A region in an atom where there is a high probability of finding electrons.
The number of cycles or vibrations per unit of time; also the number of waves produced in a given amount of time.
The basic unit of electromagnetic energy; it characterizes the wave properties of electrons.