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Unit 2
Vocal
| Term | Definition |
|---|---|
| Mineral | Naturally occurring inorganic solid |
| Rock | A solid aggregate or mass mineral |
| Element | Basic building blocks of minerals |
| Atoms | Smallest particle of matter |
| Nucleus | Consists of protons and neutrons |
| Electrons | Negatively charged particles that surround the nucleus |
| Chemical bonding | Formation of a compound by combing two or more elements |
| Ionic bonding | Atoms gain or lose valence electrons to form ions |
| Covalent bonding | Atoms share electrons to achieve electrical neutrality |
| Isotope | Is an atom that exhibits variations in its mass number |
| Radioactive decay | Some istopes have unstable nuclei that emit particals and Energy |
| Polymorphs | Two or more minerals with the same chemical Composition but different crystalline structures |
| Luster | Appearance of minerals reflected light |
| Streak | Color of a minerals in its powder form |
| Hardness | Resistance of a mineral to abrasions or mineral |
| Cleavage | Tendency to break along planes of weak. Bonding |