atomic number 57 (Meaning)
atomic number 57 (n)
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
Synonyms & Antonyms of atomic number 57
No Synonyms and anytonyms found
atomic number 57 Sentence Examples
- Lanthanum, with an atomic number of 57, is a silvery-white metal belonging to the lanthanide group.
- The element with an atomic number of 57 is used in alloys, catalysts, and high-intensity lighting sources.
- Atomic number 57 is assigned to the rare earth metal lanthanum, a rare element found primarily in minerals.
- Lanthanum, characterized by atomic number 57, exhibits pyrophoric properties, igniting spontaneously when exposed to air.
- Alloys containing element 57 (lanthanum) are known for their increased strength, toughness, and corrosion resistance.
- The emission spectrum of the element with atomic number 57 produces characteristic blue-green lines.
- Lanthanum, with its unique atomic number of 57, finds applications in electron microscopy, X-ray imaging, and other scientific fields.
- Isotopes of atomic number 57, such as lanthanum-139, are used as tracers in medical imaging and research.
- The chemical reactivity of the element with atomic number 57 is attributed to its three valence electrons.
- The high atomic number of 57 indicates that lanthanum possesses a large number of protons and neutrons within its nucleus.
FAQs About the word atomic number 57
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
No synonyms found.
No antonyms found.
Lanthanum, with an atomic number of 57, is a silvery-white metal belonging to the lanthanide group.
The element with an atomic number of 57 is used in alloys, catalysts, and high-intensity lighting sources.
Atomic number 57 is assigned to the rare earth metal lanthanum, a rare element found primarily in minerals.
Lanthanum, characterized by atomic number 57, exhibits pyrophoric properties, igniting spontaneously when exposed to air.