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12th chapter vocab
chapter 12 vocab
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 elements |
Period | In chemistry, the horizontal row of elements in the periodic table |
Group | A vertical column of elements in the periodic table |
Alkali metals | One of the elements in group one of the periodic table |
Alkaline earth material | one of the elements of group two of the periodic table |
halogen | one of the elements of the group 17 of the periodic table halogens combine to form salts |
noble gas | one of the elements of group 18 and are unreactive |