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24 Cards in this Set
- Front
- Back
Period Law
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States that when the elements are arranged by increasing atomic number, there is a periodic repetition of their properties
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Groups of the Periodic Table
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Boxes are arranged in order of increasing atomic number into a series of columns
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Periods of the Periodic Table
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Horizontal row of elements
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Representative Elements
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Elements from groups 1,2, and 13-18 in the modern periodic table, possessing a wide range of chemical and physical proberties
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Transition Elements
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Elements in groups 3-12 of the modern periodic table and are further divided into transition metals and inner transition metals
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Metals
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Elements that are generally shiny when smooth and clean, solid at room temperature, and good conductors of heat and electricity
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Alkali Metals
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The group 1 elements (except for hydrogen)
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Alkaline Earth Metals
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Highly reactive metals in group 2
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Transition Metals
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An element in groups 3-12 that is contained in the d-block of the periodic table and, with some exceptions, is characterized by a filled outermost s orbital of energy level n, and filled or partially filled d orbitals of energy level n-1
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Inner Transition Metals
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A type of group B element that is contained in the f-block of the periodic table and is characterized by a filled outermost orbital, and filled or partially filled 4f and 5f orbitals
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Lanthanide Series
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In the periodic table, the f-block elements from period 6 that follow the element lanthanum
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Actinide Series
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In the periodic table, the f-block elements from period 7 that follow the element actinium
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Nonmetals
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Elements that are generally gases or brittle, dull-looking solids
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Halogens
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Highly reactive group 17 elements
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Noble Gases
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Extremely unreactive group 18 elements
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Metalloids
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Have physical and chemical properties of both metals and nonmetals
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Ion
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An atom or a bonded group of atoms that has a positive or negative charge
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Ionization Energy
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Defined as the energy required to remove an electron from a gaseous atom
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Octet Rule
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States that atoms tend to gain, lose, or share electrons in order to acquire a full set of eight valence electrons
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Electronegativity
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Indicates the relative ability of an element's atoms to attract electrons in a chemical bond
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The group 2A elements are known as ____________ metals
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Alkaline Earth
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Elements that have physical and chemical properties of both metals and nonmetals are known as____________
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Metalloids
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The size of a positive ion is generally__________ than the isze of the neutral__________ from which it forms
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Smaller, Atom
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The size of a negative ion is generally_________ than the size of the neutral __________ from which it forms
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Larger, Atom
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