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17 Cards in this Set
- Front
- Back
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Atom
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small part of an element
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atomic number
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the number if protons of a nucleus in an atom
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Bohr diagram
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a diagram that describes the atom of a small positively
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chemical symbol
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an abbreviation or short representation
of a chemical element the symbol in the periodic table |
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electron
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is a negatively charged part of an atom
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energy level
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a comparative level of capacity for vigorous activity
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family
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a group of people are always that contain some what element quality s
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mass number
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total number of protons of neutrons in a nucleus
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neutron
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a particle with in an atoms nucleus that has no electric charge
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period
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it is a horizontal column in the periodic table that shows the amount of energy level in 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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isotope
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atoms of the same element that have different numbers of neutrons in there nuclei
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metalloid
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an element with properties of both metal and nonmetals
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metal
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any element on the left side of the periodic table except hydrogen good conductors of electricity
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nonmetals
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an element that lacks the characteristics of a metal element on the right side of the periodic table
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proton
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it is a positivity charged in an atoms nucleus
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nucleus
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the control center of a cell
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