2. Chemistry
Atoms - Smallest Unit of Matter
2. Chemistry
Atoms - Smallest Unit of Matter
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- Multiple Choice
A proton ___________:
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The average oxygen atom has a mass number of 16 and an atomic number of 8. This means that the number of neutrons in this oxygen atom is:
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How many valence electrons does an atom with five total electrons have?
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Which of the following is true about electron energy shells?
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