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In most instances,


Definitions:

Metals

Elements that are typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity.

Iron

A durable and abundant metallic element, symbol Fe, atomic number 26, used extensively as a component in steel and various other alloys.

Lead

A heavy metal element with the symbol Pb and atomic number 82, known for its density, malleability, and resistance to corrosion.

Calcium

A chemical element, symbol Ca, atomic number 20, a soft gray alkaline earth metal, essential for living organisms, primarily in bones and teeth.

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