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23 Cards in this Set
- Front
- Back
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The properties of elements recur in a repeating pattern when arranged by increasing Atomic number |
Periodic law |
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A vertical column of elements in the periodic table |
Group |
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A horizontal row of elements in the periodic table |
Period |
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The group IA / 1 elements, excluding hydrogen |
Alkali Metals |
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The group IIA / 2 elements |
Alkaline earth metals |
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The group VIIA / 17 elements |
Halogens |
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The relatively unreactive group VIIIA/ 18 elements |
Noble gases |
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The group A ( 1, 2, and 13 through 18) elements in the periodic table |
Representative elements |
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The group B ( 3 through 12) elements in the periodic table |
Transition elements |
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The elements with Atomic numbers 58 through 71 |
Lanthanide series |
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The elements with Atomic numbers 90 through 103 |
Actinide Series |
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The elements in the lanthanide and actinide series |
Inner transition elements |
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The elements with Atomic numbers 21, 39, 57, and 58 through 71 |
Rare earth metals |
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The elements beyond Atomic number 92 |
Transuranium elements |
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A shorthand description of the arrangement of electrons by sublevels according to increasing energy |
Electron configuration |
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The inner electrons in an atom which are not available for bonding |
Core electrons |
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The electrons that occupy the outermost s and p sublevels of an atom |
Valence electrons |
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The chemical symbol of an element surrounded by a dot representing each valence electron |
Electron dot formula |
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An atom that bears a charge as a result of gaining or losing valence electrons |
Ion |
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The amount of energy necessary to remove an electron from an atom |
Ionization Energy |
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Refers to the positive charge on a metal atom that has lost electrons or to the negative charge on a nonmetal atom that has gained electrons |
Ionic Charge |
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Refers to ions having the same electron configuration; for example, Mg ^ 2+ and O ^ 2- each have 10 electrons |
Isoelectronic |
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A method of writing an electron configuration in which core electrons are represented by a noble gas symbol in brackets followed by the valence electrons, for example [Ne] 3s^2 |
Core notation |
