Science Test (Metals)
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Terms
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- Alkaline Earth Metals
- Group 2 of the periodic table.
- Transition Metals
- Most of these metals are hard and shiny and all of these are good conductors of electricity. Most of these metals form colorful compounds.
- Alkaline Earth metals
- These metals are not as reactive as group 1 metals, but more reactive than most other metals.
- Actinides
- The group below Lanthanides on the Periodic Table.
- Actinides
- Only a few of these naturally occur on Earth.
- Alkali Metals
- The two most important metals in this category are sodium and potassium.
- Alkaline Earth Metals
- These metals are fairly hard, gray-white, and good conductors of electricity.
- Actinides
- Many of these elements are so unstable that they last for only a fraction of a second after they are made.
- Metals in Mixed Groups
- Not nearly as reactive on those on the left side of the table.
- Alkaline Earth Metals
- The two most common metals in this category are Magnesium and Calcium.
- Alkaline Earth Metals
- These metals react by losing two electrons.
- Actinides
- The nuclei of these elements are unstable.
- Transition Metals
- Elements in Groups 3 through 12.
- Lanthanides
- There are two rows of elements placed below the main part of the periodic table. This group is the first row.
- Lanthanides
- These are soft, malleable, shiny metals with high conductivity.
- Metals in Mixed Groups
- The most familiar are aluminum, tin and lead.
- Alkali Metals
- These metals are never found as uncombined elements in nature because they are so reactive.
- Actinides
- All of these that are heavier than Uranium were created artificially in laboratories.
- Metals in Mixed Groups
- Some elements in Groups 13 through 15.
- Alkali Metals
- The group that reacts with other elements by losing one electron.
- Alkali Metals
- Group 1 of the periodic table.
- Lanthanides
- These metals are mixed with more common metals to make alloys.
- Alkali Metals
- As pure, uncombined elements, some of these metals are so shiny and so soft that you can cut them with a plastic knife.
- Transition Metals
- These metals are less reactive than the metals in Groups 1 and 2. Used to make most gold coins and jewelry.