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17 Cards in this Set
- Front
- Back
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atom
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the basic unit of a chemical element.
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atomic number
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the number of protons in the nucleus of an atom,which determines the chemical properties of an element and its place in the periodic table
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Bohr diagram
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diagram shows the number of protons and neutrons in a nucleus that orbit energy levels and contain electrons
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chemical symbol
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one or two letter initial that represents the name of an element
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electron
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a negativity charged particle that moves in orbit of an atoms nucleus
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energy level
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electron are found in paths around the atoms nucleus
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family/group
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a vertical column in the periodic table that contains a similar element qualities
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isotope
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have different numbers of neutrons in their nuclei
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mass number
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total number of protons and the neutrons in a nucleus
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metalloid
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an element with all properties of both metals and non metals
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metal
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any element on the left side of the periodic table except hydrogen
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neutron
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a particle within an toms nucleus has no electrical charge
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non-metal
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an element that lacks the characteristics of a metal
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nucleus
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the control center of a cell
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period
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horizontal column in the periodic table that represents the energy level of an element
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periodic table
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a table of all of the elements arranged by number and grouped according to similar properties
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proton
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a positively charged particle in an atoms nucleus
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