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15 Cards in this Set
- Front
- Back
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Elements are listed on the periodic table in increasing of the ___ ___. |
Atomic number |
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Group 1 |
Alkali metals |
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Alkali metals are highly water reactive form ___ solutions with water and produce ___ gas and heat. |
Caustic Hydrogen |
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Group 2 |
Alkaline earth metals |
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Alkaline earth metals are also highly ___ ___ but not as sever as alkali. They are dangerous. |
Water reactive |
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Group 7 |
Halogens |
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___ are the most reactive of the nonmetals. Are very toxic and potent oxidizers. |
Halogens |
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Group 8 |
Noble gases (inert) Most stable |
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Elements having the same atomic number (Z) but a different atomic weight (A) are called ___. |
Isotopes |
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Three types of Isotopes: |
Natural -non radioactive Natural - radioactive Man made- radioactive through bombardment of neurons. |
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____: Electrically neutral atoms are converted to electricity charged atoms by removal or addition of electrons. |
Ionization |
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___:removal of electrons from an atom or molecule via absorption of visible or ultraviolet light. |
Photoionization |
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A ____ is 2 or more elements bound together. |
Compound |
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___ mixtures are relatively uniform in composition. ie air |
Homogeneous |
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___ mixtures may or may not have uniformly dispersed constituents. |
Heterogeneous |
