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11 Cards in this Set
- Front
- Back
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Mendeleev discovery.
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that the properties of the elements recurred at regular intervals.
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Mendeleev left spaces.
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for elements not yet discoverd.
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The modern periodic.
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is based on the periodic law.
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Horizontal rows are called.
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are called periods.
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Vertical are called.
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are called groups or families.
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Design of the periodic table.
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group,family,period,matal,
luster,ductile,malleable, corrosion,nonmetal,metalloid. |
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chemical families.
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alkali metal,alkaline earth metal,transition metal,boron family,carbon family,nitrogen family,oxygen family,halogen family,noble gas,rare-earth element,lanthanoid series,actinoid series.
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Elements in the same family.
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have similar properties.
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Each square in the periodic table.
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gives the elemenst name, chemical symobol,atomicnumber,and atomic mass.
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The number of valence electrons in an atom of an element.
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is the key to its placement in a family in the periodic table.
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periodic properties of the elements include.
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electron arrangement reactivity atomic size and metallic properties.
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