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NC physical science

holt science chapter 12

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
What property is used to arrange elements in the periodic table elements are arranged based on increasing atomic mass
Period a horizontal row of elements in the periodic table
Group a vertical column of elements in the periodic table
Group 1 Alkali metals
Group 2 Alkaline-Earth metals
Group 3-12 Transition Metals
Group 13 Boron
Group 14 Carbon
Group 15 Nitrogen
Group 16 Oxygen
Group 17 Halogens
Group 18 noble gas
Why are noble gases unreactive Atoms of noble gases have a full set of electrons in their outer level
Created by: bugzg66