krypton

/'kriptɔn/

Thân thiện

A scientist examines a sealed glass tube filled with glowing krypton gas.

Definition

1. Noun:
   • A chemical element: Krypton is a colorless, odorless, tasteless noble gas that is chemically inert. It is found in very small quantities in the Earth's atmosphere.

Usage

• Krypton is used primarily in specialized lighting and insulation applications due to its inert properties.
• It is typically discussed in scientific contexts, such as chemistry and physics.

Examples

• Noun:
  • Trace amounts of krypton are present in the air we breathe.
  • The scientist filled the lamp with krypton gas to improve its efficiency.

Advanced Usage

• Scientific Measurement: Krypton is used to define the standard meter. The wavelength of light emitted by krypton-86 under specific conditions was once the international standard for the meter.
  • The krypton-86 isotope was historically crucial for precise length measurement.

Variants and Related Words

• Krypton-86 (n): A specific, stable isotope of krypton used in scientific standards.
• Kryptonate (v, technical): To introduce krypton atoms into a solid material.

Synonyms

• Inert gas: A general term for gases, including krypton, that are not chemically reactive under normal conditions.
• Noble gas: The family of elements to which krypton belongs, characterized by their lack of chemical reactivity.

Related Phrases

• Krypton gas: The most common phrase used to specify the elemental form.
  • The window was filled with krypton gas for better insulation.

Học thuật

Noun

1. a colorless element that is one of the six inert gasses; occurs in trace amounts in air

Từ đồng nghĩa

• Kr
• atomic number 36