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What are metals?
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Metals are elements that are good conductors of electricity and heat, are malleable and ductile, and have high melting and boiling points.
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Name three properties common to most metals.
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Most metals are solid at room temperature, have high density, and are shiny (lustrous).
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What is malleability and how does it relate to metals?
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Malleability is the ability of a material to be deformed under compressive stress, like hammering or rolling, and metals typically have high malleability.
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Why are metals good conductors of electricity?
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Metals have free electrons which move easily through the structure, allowing electricity to flow.
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What is meant by ductility in metals?
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Ductility is the ability of a metal to be drawn into thin wires.
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Which group on the periodic table contains the transition metals?
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Transition metals are found in groups 3 to 12 of the periodic table.
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Name two common transition metals and their uses.
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Iron is used in construction and manufacturing, and copper is used in electrical wires.
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Why do transition metals often form colored compounds?
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Transition metals can form colored compounds due to the d-orbitals where electrons can absorb visible light and cause electronic transitions.
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What is the primary ore of iron?
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The primary ore of iron is hematite (Fe2O3).
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How do transition metals differ from other metals in chemical bonding?
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Transition metals can form complex ions and often have multiple oxidation states.
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What are alloys?
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Alloys are mixtures of two or more elements, where at least one element is a metal, created to enhance properties like strength or resistance.
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Name an alloy and its components.
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Steel is an alloy of iron and carbon.
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Which metal is most widely used and considered the backbone of the modern industrial world?
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Iron is the most widely used metal, and it's essential in the production of steel.
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What is corrosion and why do metals corrode?
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Corrosion is the breaking down or destruction of a material, usually a metal, due to reactions with environmental factors such as oxygen or moisture.
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How can the corroding of metals be prevented?
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Corrosion can be prevented by painting, galvanizing, or using corrosion-resistant alloys.
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