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Physical Science MH
Chapter 12 Definitions(periodic table)
Question | Answer |
---|---|
Periodic | describes something that occurs or repeats at regular intervals |
Periodic Law | the law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements |
Period | in chemistry, a horizontal row of elements in the periodic table |
Group | a vertical column of elements on the periodic table; elements in a group share chemical properties |
Alkali Metal | one of the elements in group one of the periodic table |
Alkaline-Earth Metal | one of the elements in group two of the periodic table |
Halogen | one of the elements in group seventeen of the periodic table |
Noble Gas | one of the elements in group eighteen of the periodic table |