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chapter 12 v
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 the elements |
period | in chemistry a horizontal row of elements in the periodic table |
group | a verticle column of elements in the periodic table; elements in a group share chemicle properties |
alkali metal | one of the elements of group 1 of the periodic table(lithium,sodium,potassium,rubidium,cesium,and francium) |