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Atomic Structure Word Scramble

 
 


 

 
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Question Answer
law of conservation of massthe law that states that mass cannot be created or destroyed in ordinary chemical and physical changes.
law of definite proportionsthe law that states that a chemical compound always contains the same elements in exactly the same proportions by weight or mass.
law of multiple proportionsthe law that states that when an element combines to form two or more compounds, the mass of the element that combines with a given mass of the other is in the ratio of small whole numbers.
atomthe smallest unit of an element that maintains the chemical properties of that element.
nuclear forcesthe interaction that binds protons and neutrons, protons and protons, and neutrons and neutrons together in a nucleus.
atomic numberthe number of protons in the nucleus of an atom.
average atomic massthe weighted average of the mass of all naturally occurring isotopes of an element.
mass numberthe sum of the numbers of protons and neutrons in the nucleus of an atom.
electromagnetic spectrumall of the frequencies or wavelenghts of electromagnetic radiation.
excited statea state in which an atom has more energy than it does at its ground state.
frequencythe number of cycles or vibrations per unit of time; also the number of waves produced in a given second of time.
ground statethe lowest energy state of a quantizied system.
wavelengththe distance from any point on a wave to an identical point on the next wave.
angular momentum quantum numberthe quantum number that indicates the shape of an orbital
Heisenberg Uncertainty Principlethe principle that states that determining both the position and velocity of an electron or any other particle simultaneously is impossible.
magnetic quantum numberthe quantum number that corresponds to the alingment of the angular momentum component with a magnetic field.
orbitala region in an atom where there is high probability of finding electrons.
principal quantum numberthe quantum number that indicates the energy and orbital of an electron in an atom.
quantum numbersa number that specifies the properties of electrons.
quantum theorythe study of the structure and behavior of the atom and of subatomic particles from the view that all energy comes in tiny indivisible bundles.
spin quantum numbersthe quantum number that describes the intrinsic angular movement of a particle.
Aufbau principlethe 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.
electron configurationthe arrangement of electrons in an atom.
Hund's rulethe rule that states that for an atom in the ground state, the number of unpaired electorns is the maximum possible and those unpaired electrons have the same spin.
noble gasesone of the elements of group 18 of the periodic table; are unreactive.
Pauli exclusion principlethe principle that states that two particles of a certain class cannot be in exactly the same energy state.
highest occupied levelthe electron-containing main energy level with the highest principal quantum number.
inner-shell electronselectrons that are not in the highest-occupied energy level.
noble-gas configurationan outer main energy level fully occupied, in most cases, by eight electrons.