Term
Which statement about electrons and atomic orbitals is NOT true?
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Definition
D
An orbital can contain a maximum of two electrons |
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Term
Which subatomic particle has a negative charge?
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A member of the boron family has three valence electrons, while a member of the nitrogen family has
Select one:
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As you move from left to right across a period, the number of valence electrons
Select one:
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Term
Atoms of the most reactive elements tend to have
Select one:
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Definition
C
eight valence electrons |
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Term
Compared with Group 2A elements, Group 6A elements have
Select one:
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Term
Mendeleev arranged the known chemical elements in a table according to increasing
Select one:
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Term
Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element?
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Term
The usefulness of Mendeleev's periodic table was confirmed by
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Definition
D
the discovery of the nucleus |
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Which of the following gases emit colors when an electric current is applied?
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Term
Which of the following Group 1A elements is the most reactive?
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Definition
D
They are similar to noble gases |
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