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18 Cards in this Set
- Front
- Back
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Periodic Law
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the physical and chemical properties of the elements are periodic functions of their atomic numbers.
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Periodic Table
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an arrangement of the elements in order of increasing atomic numbers so that elements with similar properties fall under the same column, or group.
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Lanthanides
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are the 14 elements with atomic numbers 58 to 71.
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Actinides
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are the 14 elements with atomic numbers 90 to 103.
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Alkali Metals
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the elements of group one of the periodic table.
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Alkaline-Earth Metals
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the elements of group two of the periodic table.
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Transition Elements
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the d-block elements are metals with typical metallic properties.
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Main-Group Elements
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the p-block elements together with the s-block elements are called this.
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Halogens
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the elements of group 17 of the periodic table.
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Atomic Radius
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may be defined as one-half the distance between the nuclei of identical atoms that are bonded together.
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Ion
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an atom or a group of bonded atoms that has a positive or negative charge.
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Ionization
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any process that results in the formation of an ion.
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Ionization Energy
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IE, the energy required to remove one electron from a neutral atom of an element.
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Electron Affinity
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energy change that occurs when an electron is acquired by a neutral atom.
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Cation
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a positive ion.
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Anion
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a negative ion.
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Valence Electrons
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the electrons available to be lost, gained, or shared in the formation of chemical compounds.
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Electronegativity
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measure of the ability of an atom in a chemical compound ti attract electrons from another atom in the compound.
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