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Published bySabrina Melton Modified over 9 years ago
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7th Grade Unit 11: Chemical Reactions and Compounds Lesson 1: Physical Properties of Elements Vocabulary of Instruction:
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1. Brittle Having little elasticity; hence easily cracked, fractured, or snapped.
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2. Conductivity Property of metals and alloys that allows heat or electrical charges to pass through the material easily.
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3. Ductile Ability of metals to be drawn into wires.
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4. Luster Property of metals and alloys that describes having a shiny appearance or reflecting light.
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5. Magnetic The properties and interactions of magnets to attract other metal objects.
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6. Malleable Ability of metals and alloys to be rolled or hammered into thin sheets.
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7. Metal Element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity.
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8. Metalloid Element that shares some properties with metals and some with nonmetals.
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9. Nonmetal Element that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically is not shiny.
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10. Reactive A chemical that, in the pure state, or as produced or transported, will vigorously polymerize, decompose, condense, or become self-reactive under conditions of shock, high pressure, or high temperature.
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11. Semiconductor Materials having conductivity properties between that of metals (good conductors) and nonmetals (insulators) and having controllable conductivity parameters. Silicon Germanium
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12. Sonorous Capable of giving out a deep, resonant sound.
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