Sodium (atomic number 11): What is a primary industrial/commercial use associated with sodium?

Inert shielding gas for welding

Production of sodium compounds (e.g., sodium hydroxide/alkali production)

Packaging (aluminum cans and foil)

Calcium (atomic number 20): What is a major industrial use of calcium (or its compounds)?

Cement and construction (lime/calcium oxide from limestone)

Ferroalloy deoxidizer for steel

Alloying to make lightweight aluminum–magnesium alloys

Ferrosilicon in steel alloys / deoxidizer

Inert shielding gas for welding

Semiconductor chips (electronics)

Inert shielding gas for welding and metal processing

Fertilizers (phosphate fertilizers)

Packaging (foil and beverage cans)

PVC (polyvinyl chloride) production

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01Sodium (atomic number 11): What is a primary industrial/commercial use associated with sodium?
02Calcium (atomic number 20): What is a major industrial use of calcium (or its compounds)?
03Magnesium (atomic number 12): What is a major industrial use of magnesium?
04Sulfur (atomic number 16): What is sulfur chiefly used to produce industrially?
05Silicon (atomic number 14): Which is a major industrial use of elemental silicon?
06Argon (atomic number 18): What is a common industrial use for argon?
07Potassium (atomic number 19): What is potassium primarily used for commercially?
08Phosphorus (atomic number 15): What is the principal commercial use of phosphorus?
09Aluminium (atomic number 13): What is a primary commercial use of aluminum?
10Chlorine (atomic number 17): Which major industrial product relies heavily on chlorine?