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Chemistry Vocab
| Term | Definition |
|---|---|
| Physical Change | A change that affects the size, shape or form of a substance but does not affect its composition physical |
| Chemical Change | A change that results in the formation of a new substance with different properties. |
| Element | A pure substance cannot be separated into simpler substances by physical or chemical means. |
| Compound | A pure substance composed of two or more different elements joined by chemical bonds |
| Mixture | A combination of two or more pure substances that are not chemically combined |
| Matter | The substance of which all material is made, has mass and occupies space. |
| Isotope | Forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nucleus. |
| Proton | Atomic particle that carries a positive electrical charge |
| Neutron | Atomic particle that carries no electrical charge |
| Electron | Atomic particle that carries a negative electrical charge |
| Heavy and Large | Protons and Neutrons |
| Small and Light | Electrons |
| groups | vertical |
| Periods | horizontal |
| Group 1 | Alkali Metals |
| Group 2 | Alkaline Earth Metals |
| Group 3 | Boron Family |
| Group 4 | Carbon Family |
| Group 5 | Nitrogen Family |
| Group 6 | Oxygen Family |
| Group 7 | halogens |
| Group 8 | Noble Gases |
| Properties | Physical- look Chemical- reaction? |
| Metals | shiny, malleable, good conductors of thermal energy and electric current |
| Non Metals | not malleable not shiny and not ductile |
| Metalloids | Shiny and brittle |
| Definition of Metalloids | elements in this group that has properties of metals and non |