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7 Cards in this Set
- Front
- Back
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Period |
A horizontal row of elements in the Periodic Table. Elements show trends in the properties across a period. |
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Group |
A vertical column in the Periodic Table. Elements in a group have similar chemical properties and their atoms have the same number of outer-shell electrons. |
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Periodicity |
A regular periodic variation of properties of elements with atomic number and position in the Periodic Table. |
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Thermal decomposition |
The breaking up of a chemical substance with heat into at least two chemical substances. |
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Displacement reaction |
A reaction in which a more-reactive element displaces a less-reactive element from an aqueous solution of the latter's ions. |
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Disproportionation |
The oxidation and reduction of the same element in a redox reaction. |
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Precipitation reaction |
The formation of a solid from a solution during a chemical reaction. Precipitates are often formed when two aqueous solutions are mixed together. |
