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22 Cards in this Set
- Front
- Back
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The section of the periodic table known as a period is also known as a...
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row
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The section of the periodic table known as a group is also known as a...
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column
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What is the basis behind periodic law?
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chemical properties of the elements
are dependent, in a systematic way, upon their atomic numbers. |
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Where on the periodic table do you find the transition elements?
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column 3-12
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Where on the periodic table do you find the lanthanides?
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57-71
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Where on the periodic table do you find the actinide elements?
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89-103
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As you go left to right on the periodic table, what happens to the number of electrons.
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1 added
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What is the periodic table trend for atomic radii?
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the atomic radius decreases across a period from left to right and increases down a given group
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What is the periodic trend for ionization energy?
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Ionization energy increases from left to right across a period as the atomic
radius decreases. Moving up a group, the ionization energy increases as the atomic radius decreases. Therefore it can be said that atomic radi and ionization energy are relatively inversely related. |
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What is the principle behind the meaning of the word ionization energy?
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energy required to completely remove an electron from a gaseous atom or ion.
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What is the dif. between first and second ionization energies?
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The first ionization energy is the
energy required to remove one valence electron from the parent atom, the second ionization energy is the energy needed to remove a second valence electron from the univalent ion to form the divalent ion, and so on. |
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What is the definition of electron affinity?
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it represents the ease with which the atom can accept an electron. (higher number = more attraction)
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What is deamed by the term electronegativity?
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a chemical property that describes the ability of an atom (or, more rarely, a functional group) to attract electrons.
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What is the general trend for electronegativity in the periodic table?
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lower left = low electronegativity
upper right = high electronegativity |
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What is the meaning of the word malleability?
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The ability of a metal to
be hammered into shapes. |
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What is the meaning of the word ductility?
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The ability to be drawn
into wires is called ductility |
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Where are the nonmetals located in the periodic table?
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upper right, separated by a line
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On the periodic table, where are the metalloids found?
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The metalloids or semimetals are found along the line between the metals and nonmetals in the periodic table.
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Where are the alkali metals located at?
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Group IA
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Where are the alkali earth metals located at?
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Group IIA
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Where are the halogens located at?
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VIIA
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The noble gases are also known as the ____ gases.
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enert
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