Definition

1. Noun:
   • A trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds: This is the chemical element with the symbol Ho and atomic number 67. It is a part of the lanthanide series, is relatively soft and malleable, and is stable in dry air at room temperature. Its compounds are notable for their strong magnetic properties.

Usage

• Atomic number 67 is the formal, scientific identifier for the element holmium. It is used primarily in academic, scientific, and technical contexts such as chemistry, physics, and materials science to specify the element unambiguously by its number of protons.
• Example: "The sample was doped with a trace amount of atomic number 67 to study its magnetic effects."

Examples

• Noun:
  • On the periodic table, atomic number 67 is positioned between dysprosium (66) and erbium (68).
  • The laser required a crystal infused with ions of atomic number 67.
  • Research into high-strength magnets often involves alloys containing atomic number 67.

Advanced Usage

• In spectroscopic notation, the presence of atomic number 67 (holmium) can be identified by its unique absorption and emission spectral lines.
• In nuclear physics, isotopes of atomic number 67 are studied for their nuclear spin and potential applications.

Variants and Related Words

• Holmium (Ho): This is the common name for the element identified by atomic number 67. All usage examples for "atomic number 67" can be substituted with "holmium" in most contexts.
  • Example: "Holmium (atomic number 67) has the highest magnetic strength of any element."
• Lanthanide: The series of metallic elements to which atomic number 67 belongs.
• Rare-earth element: The broader category that includes the lanthanides and a few other elements; holmium (atomic number 67) is classified as a rare-earth element.

Synonyms

• Holmium: The direct and most frequently used synonym.
• Element 67: A less common but equivalent scientific synonym.
• Ho: The chemical symbol, used in formulas and shorthand notation (e.g., Ho₂O₃).

Notes

• There are no idioms, phrasal verbs, or colloquial expressions associated with this term, as it is a precise scientific identifier.
• The term is always used as a singular noun.

Noun

1. a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds