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Periodic Table 1
This stack will introduce you to the characteristics of the periodic table
| Term | Definition |
|---|---|
| Periodic Table | a list that shows the chemical elements arranged according to their properties |
| Groups/Family | a vertical column on the periodic table |
| Periods | name given to a horizontal row of the periodic table |
| Electrons | subatomic particle with a negative charge and located outside the nucleus |
| Element | composed of one kind of atom that have the same atomic number |
| Metals | An element below and to the left of the stair-step line of metalloids; about 80% of the known elements are metals. |
| Non-Metals | An element above and to the right of the stair-step line of metalloids. Are not able to conduct electricity or heat very well. |
| Metalloids | An element with properties of both metals and nonmetals located along the stair-step line on the right side of the periodic table. |
| Ductile | the ability to be stretched into a thin wire |
| Malleable | the ability to be hammered into a thin sheet |
| Insulator | a material that allows little or no heat, electricity or sound to go into or out of something |
| Conductor | A material that let electrical currents to pass through |
| endothermic reaction | A chemical reaction in which heat energy is absorbed. |
| exothermic reaction | A chemical reaction in which heat energy is given off. |