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21 Cards in this Set
- Front
- Back
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Energy Levels
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the areas outside the nucleus where the electrons revolve around the nucleus
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Proton
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Heavy subatomic particle found in the nucleus with a positive electrical charge
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Neutron
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Heavy subatomic particle found in the nucleus with a neutral or no electrical charge
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Electron
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Very light subatomic particle found in energy levels or clouds with a negative electrical charge
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Atomic Mass
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Equal to the mass of the protons and neutrons in the nucleus of the atom
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Atomic number
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equal to the number of protons in the nucleus of an atom.
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Isotope
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an atom with a different number of neutrons that the normal number.
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Period
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a horizontal row of elements on the periodic table.
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Group/Family
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a vertical row of elements on the periodic table
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Alkali metals
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very reactive metals in group 1
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Alkaline Earth metals
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reactive metals in group 2 that form many useful compounds
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Transition Metals
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Metals that form subgroups in the middle of the periodic table. They don't always follow normal bonding rules.
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Halogens
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very reactive nonmetals found in group 17
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Noble gases
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gases in group 18 that are not reactive and form no compounds on their own.
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Valance
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the outer energy level of an atom. The bonding electrons are found in this level.
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Chemical bond
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the force of electrical attraction that holds atoms together to form a compound
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Ion
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Formed when a atom gains or loses electrons form the valance. If they lose they are are positive and if they gain they are negative
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Ionic bonding
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bonding between atoms where the electrons are lost and gained
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covalent bonding
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bonding between atoms where the electrons are shared
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electricity
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the flow of electrons within a substance
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Metallic bond
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occurs when positive charged metal ions are attracted to the electrons in a metal
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