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Stack #504936

chapter 12 vocabulary PeriodicTable

QuestionAnswer
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 atomic numbers of the elements
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 chmical properties
Alkali Metals One of the elements of group 1 of the periodic table(lithium, Sodium, Potassium, Rubidium,cesium,and francium)
Alkaline-earth Metal Oneof the elements of group 2 of the periodic table.(beryllium, magnesium, calcium, strondium, barium, and radium)
Halogens One of the element, ofgroup 17 of the periodic table( flourine, chlorine, bromine, iodine, and astatine); halogens combine with most metals to form salts
noble gas one of the elements of group 18 of the periodic table( helium, neon, argon, krypton, xenon, radon); noble gas are inactive
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