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Stack #1792118
Term | Definition |
---|---|
Period | Each row in the table of elements |
Group | Each column on the periodic table is called this |
Periodic law | Pattern of repeating properties |
Atomic mass unit | One twelfth the mass of a carbon |
Metals | Elements that are good conductors of electric current and heat |
Transition metals | Elements that from a bridge between the elements on the left and right sides of the table |
Nonmetals | Elements that are poor conductors of heat |
Metalloids | Properties that fall between those metals and nonmetals |
Valence electron | Highest occupied energy level of an atom |
Alkali metals | Group 1 A |
Alkaline earth metals | Group 2 A |
Halogens | Group 7 A |
Noble gases | Group 8 A |