Term
| Who first came up with the theory of atoms? |
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Definition
| Greek scientist Democritus |
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Term
| What are subatomic particles and their charges? |
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Definition
| Neutrons (neutral), protons (positive), electrons (negative) |
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Term
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Definition
| Center of an atom, containing protons and neutrons |
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Term
| Which has a larger mass: protons or electrons? |
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Definition
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Term
| What are the charges of most atoms and why? |
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Definition
| Neutral, since there are equal numbers of protons and electrons |
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Term
| What is an atomic number based on? |
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Definition
| Number of protons in an element's atom |
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Term
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Definition
| Atoms of the same element, but with different numbers of electrons |
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Term
| How are isotopes identified? |
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Definition
| By an element's atomic mass |
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Term
| Do all isotopes of a specific element have the same chemical properties, and why? |
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Definition
| Yes, because they all have the same number of electrons |
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Term
| What types of isotopes break down at a constant rate? |
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Definition
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Term
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Definition
| Electrons that are available to form bonds |
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Term
| Is the sharing of electrons in atoms always equal? |
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Definition
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Term
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Definition
| Substance formed by combinations of elements |
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Term
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Definition
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Term
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Definition
| Electrons are transferred between atoms |
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Term
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Definition
| Electrons are shared between atoms |
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Term
| What are van der Waals forces? |
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Definition
| Attractions formed between oppositely charged regions of molecules |
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