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18 Cards in this Set
- Front
- Back
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Periodic law |
Back (Definition)the statement that there is a periodic repetition of chemical and physical properties of the elements when they are arranged by increasing atomic number |
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Groups |
Columns |
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Periods |
Rows |
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Representative elements |
Groups 1,2,13 to 18 |
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Transition elements |
Elements in groups 3 to 12 |
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Metals |
Elements that are generally shiny when smooth and clean solid at room temperature and good conductors of heat and electricity |
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Alkali metals |
The group one element |
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Alkaline earth metal |
Group two elements |
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Transition elements |
Groups 3 to 12 |
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In a transition metal |
Lanthanide series and actinide series |
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Nonmetals |
Generally gases or brittle dull-looking solids, they are poor conductors of heat and electricity |
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Halogens |
Group 17 |
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Noble gases |
Extremely unreactive group 18 elements |
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Metalloids |
Have physical and chemical properties of both metals and nonmetals |
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Ionization energy |
The energy required to remove and electron from a gaseous atom |
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Octet rule |
States that atoms tend gain, lose, or share electrons in order to acquire a full set of eight valance electrons |
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Electronegativity |
Indicates the relative ability of its atoms to attract electrons in a chemical bond |
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Ljgljg |
Khalid |
