khí hiếm
Definition
- Noun:
- Rare gas: Any of a group of gaseous elements that are chemically very unreactive due to their stable, filled electron shells. Also commonly known as noble gases.
- Inert gas: A gas that does not undergo chemical reactions under a set of given conditions. This term is often used interchangeably with "rare gas" in many contexts, though "noble gas" is the preferred modern term.
Usage Examples
- Noun:
- Heli là một khí hiếm. (Helium is a rare gas.)
- Khí hiếm thường được dùng trong đèn neon. (Rare gases are often used in neon lights.)
- Nhóm khí hiếm nằm ở cột cuối cùng của bảng tuần hoàn. (The group of rare gases is located in the last column of the periodic table.)
Advanced Usage
- In scientific and industrial contexts, "khí hiếm" is crucial for applications requiring non-reactive atmospheres, such as in welding (argon), lighting (neon, krypton), and cryogenics (helium).
Variants and Related Words
- Khí trơ (n): Inert gas. This is a direct synonym often used in Vietnamese.
- Argon là một khí trơ phổ biến. (Argon is a common inert gas.)
- Khí quý (n): Noble gas. This is a less common but technically precise variant.
- Nhóm khí quý gồm sáu nguyên tố. (The noble gas group consists of six elements.)
Synonyms
- Noble gas: The modern, more accurate term for this group of elements.
- Inert gas: Emphasizes the lack of chemical reactivity.
Related Scientific Concepts
- Bảng tuần hoàn (Periodic Table): The noble gases constitute Group 18 of the periodic table.
- Phản ứng hóa học (Chemical Reaction): Rare gases are characterized by their lack of participation in most chemical reactions.
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Rare gas
