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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 |