| WORDS TO KNOW |
DEFININTIONS |
| Actinides | Elements 89-102 on the periodic table |
| Alkali metals | Elements in the first column of the periodic table |
| Alkaline earth metals | Elements in the second column of the periodic table |
| Ductile | The property of metal that allows it to be drawn into wires |
| Families | Vertical columns on the periodic table |
| Graphite | A form of pure carbon |
| Groups | Vertical columns on the periodic table |
| Halogens | Elements in column 17 of the periodic table |
| Diatomic molecule | A molecule with two atoms that are both the same element; examples include Hydrogen, Nitrogen, Oxygen, and all of the Halogens |
| Inner transition elements | Lanthanides and Actinides |
| Lanthanides | Elements 57-70 on the periodic table |
| Luster | The shininess of a metal |
| Malleable | Able to be hammered into thin sheets |
| Metalloids | Elements between the metals and nonmetals on the periodic table; they possess characteristics of both metals and nonmetals; also known as semimetals |
| Metals | Located on the left side of the periodic table; known for having fairly loosely valence electrons |
| Noble gases | Elements in column 18 of the periodic table; they generally do not form bonds; also referred to as inert gases |
| Nonmetals | Elements toward the right of the periodic table; they possess tightly held valence electrons |
| Periodic Table | A chart that organizes the elements according to their atomic number and groups them according to their properties; currently there are 118 identified |
| Periods | Horizontal rows on the periodic table |
| Transition metals | Elements in columns 3-12 on the periodic table |
Buen Viaje lv.2 ch 8
