strontium

/'strɔɳʃiəm/

Thân thiện

Strontium compounds are used to create the bright red color in fireworks.

Definition

1. Noun:
   • A chemical element: Strontium is a soft, silver-white or yellowish metallic element belonging to the alkali metal group on the periodic table. It is chemically reactive, turning yellow when exposed to air, and is found naturally in minerals such as celestite and strontianite.

Examples of Usage

• Noun:
  • Strontium is used in the production of ferrite magnets for loudspeakers.
  • The isotope strontium-90 is a radioactive byproduct of nuclear fission.
  • The mineral celestite is the primary source of strontium.

Advanced Usage

• "Strontium ranelate": A pharmaceutical drug used in some countries to treat osteoporosis.
  • The doctor prescribed strontium ranelate to help strengthen her bones.
• "Strontium aluminate": A compound used in glow-in-the-dark pigments.
  • The emergency exit signs were coated with strontium aluminate.

Variants and Related Words

• Strontianite (n): A mineral, strontium carbonate (SrCO₃), which is a source of strontium.
• Celestite (n): A mineral, strontium sulfate (SrSO₄), which is the principal ore of strontium.
• Strontium-90 (n): A radioactive isotope of strontium, a significant component of nuclear fallout.

Synonyms

• Sr: The chemical symbol for strontium.
• Metallic element: A general term for elements like strontium that exhibit metallic properties.

Related Phrases and Compounds

• Strontium chloride: A compound of strontium, sometimes used in toothpaste for sensitive teeth.
  • The new toothpaste contains strontium chloride to reduce sensitivity.
• Strontium nitrate: A compound used in pyrotechnics to produce a bright red flame.
  • Fireworks get their deep red color from strontium nitrate.

Học thuật

Noun

1. a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite

Từ đồng nghĩa

• Sr
• atomic number 38