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S8p1.f
Recognize hat there are more tan 100 elements and some have similar properties
| Question | Answer |
|---|---|
| Periodic table | a chart organizes info about all of the known elements according to their properties |
| Period | in chemistry, 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 arom and that determines an atoms chemical property |
| Reactivity | describes how likely an element is to from bonds with other elements |
| Metalloid | elements that have properties of both metals and non metals |
| Inert | unable to react chemically under normal circumstances |