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Chapter 12

Perodic table

VocabDefintion
Perodic describes something that occurs or repeats atregular intervals
Perodic law the law that states that the repeating chemical and physical properties of elements change perodically with the atomic numbers of the elements
Period in chemistry,a horizontal row of elements in the perodic table
Group a vertical column of elements in the perodic table;elements in a group share chemical prop.
Alkali metal one of three elements of group 1 of the perodic table
Alkaline-earth metal one of the elements in group 2 of the perodic table
Halogen one of the elements of group 17 of the perodic table
Noble gas one of the elements of group 18 in the perodic table
Created by: Vampiricnoodle
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