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S8P1.f
Recognize that there are more than 100 elements and some have similar properties
| Question | Answer |
|---|---|
| Periodic Table: | a chart that organizes info about all of the known elements according to your properties. |
| Period: | a horizontal row of elements in the periodic table. |
| Group: | a vertical column of elements in the periodic table; elements in a group share chemical properties. |
| Valence electrons: | an electron that is found in the outermost shell of an atom and that determines the atom's chemical properties. |
| Reactivity: | describes how likely an element is to form bonds with other elements. |
| Metalloid: | elements that have properties of both metals and nonmetals. |
| Inert | unable to react chemically under normal circumstances. |