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16 Cards in this Set
- Front
- Back
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Mendeleev |
Arranged elements in order of increasing atomic mass. |
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Mosely |
Arranged elements in order of increasing atomic number. Periodic Number |
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Periodic Number |
The physical and chemical properties of the elements are periodic functions of their atomic numbers. |
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Modern Periodic Table |
Arranged elements in order of their atomic numbers so that elements with similar properties fall in the same column or group. Added: Noble gases, Lanthenoids, and Actinoids. |
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Main-group elements |
p and s blocks |
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Atomic Radius |
Distance from nucleus to outermost energy level. Decreases across a period Increases down a group |
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Ionization Energy |
The energy required to remove an electron Increases across a period Decreases down a group |
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Electron Affinity |
The likelihood of gaining an electron Increases across a period Decreases down a group |
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Electronegativity |
The measure of the attraction of the protons exerted on the electrons Increases across a period Decreases down a group |
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Ion |
An atom or group of bonded atoms that have a positive or negative charge. |
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Ionization |
Any process that results in an ion being formed. |
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Cation |
A positive Ion |
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Anion |
A negative Ion |
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Valence electron |
Electron that is capable of being lost, gained or shared in the formation of a chemical compound. |
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Fracium |
Size: Biggest E.A.: lowest E.N: Lowest I.E: Lowest |
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Flourine |
Size: Smallest E.A: highest E.N: highest I.E: highest |
