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