Which metals are considered combustible metals?

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Multiple Choice

Which metals are considered combustible metals?

Explanation:
Combustible metals are metals that can ignite and burn in air under certain conditions and often require special suppression methods. Sodium and potassium are highly reactive alkali metals that can ignite in air when in small particles or shavings, and magnesium burns with a bright flame and can sustain combustion when heated or powdered. The other metal groups—iron, copper, and aluminum; titanium, zirconium, and hafnium; lead, tin, and nickel—do not routinely ignite and sustain flames in typical fire scenarios, so they aren’t classified as combustible metals in standard fire safety practice. This makes sodium, potassium, and magnesium the correct trio.

Combustible metals are metals that can ignite and burn in air under certain conditions and often require special suppression methods. Sodium and potassium are highly reactive alkali metals that can ignite in air when in small particles or shavings, and magnesium burns with a bright flame and can sustain combustion when heated or powdered. The other metal groups—iron, copper, and aluminum; titanium, zirconium, and hafnium; lead, tin, and nickel—do not routinely ignite and sustain flames in typical fire scenarios, so they aren’t classified as combustible metals in standard fire safety practice. This makes sodium, potassium, and magnesium the correct trio.

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