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18 Cards in this Set
- Front
- Back
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horizontal row on a periodic table |
Period |
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All molecules are made up of |
Atoms |
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The K shell of an atom in a Bohr-Rutherford diagram has ___________ number of electrons. |
Two |
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The electrons in the outer most shell |
Valence Electrons |
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A pure substance made from two or more elements that are combined together chemically |
Compound |
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Any solid that can be stretched into a long wire is said to be |
Ductile |
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The ability of a substance to conduct electricity or heat |
Conductivity |
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A substance's ability to resist being scratched |
Hardness |
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The resistance to flow |
Viscosity |
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- positively charged particle in an atom |
Proton |
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- negatively charged particle in an atom |
Electron |
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A mixture of two or more metals |
Alloy |
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- particle that has no electric charge so is neutral; |
Neutron |
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pure substance that is formed when non-metals combine chemically |
A molecular compound |
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the ability of a substance to be rolled or pounded into thin sheets |
Malleability |
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the ability to burn |
Flammability |
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the number of electrons |
the same as number of protons |
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vertical rows on the periodic table |
Group |
