click below
click below
Normal Size Small Size show me how
Periodic Table Ch 3
The Periodic Table
Term | Definition |
---|---|
alkali metal | An element in group 1A of the periodic table |
nonmetal | An element that has no metallic properties Ex. radium, oxygen, carbon |
transition element | elements in groups 3 thru 12 on the periodic table |
halogen | an element in group 17 on the periodic table Ex. bromine, chlorine, iodine |
metalloid | an element that has physical and chemical properties of metals and nonmetals |
malleability | the ability of a substance to be hammered or rolled into sheets Ex. gold leaf or aluminum foil |
semiconductor | A substance that conducts electricity at high temperatures but not at low temperatures |
noble gas | an element in group 18 on the periodic table |
alkali earth metal | An element in group 2 of the periodic table |
periodic table | A chart of elements arranged into rows and columns according to their physical and chemical properties |
group | a column on the periodic table (goes up and down) |
period | a row on the periodic table (goes across) |
metal | an element that is generally shiny and is easily pulled into wires or hammered into this sheets and is a good conductor of electricity and thermal energy Ex. copper, iron, tin |
luster | the way a mineral reflects or absorbs light at its surface reflect=shiny absorb= dull |
ductility | the ability to be pulled into thin wires |