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16 Cards in this Set
- Front
- Back
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The number of protons in the nucleus of an atom are called ______ |
Atomic Number |
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How are the elements arranged in the periodic table? |
From left to right and top to bottom. In order of increasing atomic number |
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Group |
Elements in a column in the periodic table |
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Family |
The elements in a row in the periodic table |
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Period |
A row of elements |
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True or False? The number of valence electrons increases from right to left (across the periodic table)? |
FALSE |
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Are the elements represented in figure 6, page 57, from a new row across the periodic table or column down the periodic table? |
They are from a row across of the periodic table |
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How many more valence electrons do a nitrogen atom have than a carbon atom? |
one more |
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Reason why each family in the periodic table has its own characteristic property? |
Each element in a family has the same number of valenced electrons |
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Which group includes noble gases? |
Group 18 |
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Why are noble gases also known as inert gases? |
Inert atoms are inactive and noble gases. |
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Group 18 is also called the ____ |
Halogen Family |
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Why does a fluorine atom react easily with other atoms that could give up electrons |
A fluorine atom has seven valenced electrons |
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Why are elements in the halogen family very reactive? |
They each have seven valence electrons |
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What property makes alkali metals very reactive |
An Alkali metals lose one electron |
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True or False? Hydrogen is extremely reactive? |
TRUE |
