curium

/'kjuəriəm/

Thân thiện

A scientist carefully handles a sample of curium in a secure laboratory.

Definition

1. Noun:
   • A radioactive transuranic metallic element: Curium is a synthetic, heavy metal that is radioactive and belongs to the actinide series of elements. It is produced artificially and does not occur naturally in significant quantities.

Usage Examples

• Noun:
  • Curium was first produced in 1944 by bombarding plutonium with alpha particles.
  • The isotope curium-244 is used as a power source in some space missions.
  • Handling curium requires strict safety protocols due to its intense radioactivity.

Advanced Usage

• Scientific Context: Curium is primarily discussed in nuclear chemistry, physics, and materials science. Its most common isotopes are Cm-242 and Cm-244.
  • The research focused on the metallurgical properties of curium alloys.

Variants and Related Words

• Symbol: Cm (The chemical symbol for curium, used on the periodic table).
• Actinide: (n) Any element in the series from actinium to lawrencium, of which curium is a member.
• Transuranium/Transuranic element: (n) Any chemical element with an atomic number greater than 92 (uranium), a category that includes curium.

Synonyms

• Element 96: A synonym referring to its atomic number.
• Synthetic element: A broader term for human-made elements like curium.

Related Phrases and Idioms

(This word is a highly specific scientific term and is not commonly used in idiomatic expressions or phrasal verbs.)

Học thuật

Noun

1. a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei

Từ đồng nghĩa

• Cm
• atomic number 96