ni

Thân thiện

A scientist holds a small sample of pure nickel in a laboratory.

Definition

1. Noun:
   • A chemical element: A hard, malleable, ductile, silvery-white metallic element that is resistant to corrosion. It is used in alloys and occurs in minerals such as pentlandite and garnierite.
   • Symbol: Ni
   • Atomic Number: 28

Usage Examples

• Noun:
  • The coin is made from an alloy containing ni.
  • Ni is a key component in stainless steel.
  • The chemical symbol for this element is Ni.

Advanced Usage

• In scientific and industrial contexts, "ni" is often used in compound terms to specify alloys or chemical compounds. For example, "ni-plating" refers to the electroplating of a thin layer of nickel onto an object for protection or decoration.
  • The parts undergo ni-plating to prevent rust.

Variants and Related Words

• Nickel: This is the full, common name for the element "ni". The two terms are synonymous in most contexts, with "Ni" being the standard chemical symbol.
  • The battery contains nickel (Ni).

Synonyms

• Element 28: A reference by its atomic number.
• Nickel: The standard English name for the element.

Notes on Meaning

• "Ni" is primarily a scientific and technical term. In everyday conversation, the full word "nickel" is almost always used instead, except when referring to the chemical symbol.
• The word "nickel" can also refer to a five-cent coin in some countries (e.g., the United States, Canada), which is historically made from a nickel-copper alloy. This is a separate, distinct meaning from the elemental symbol "Ni".

Học thuật

Noun

1. a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite

Từ đồng nghĩa

• nickel
• Ni
• atomic number 28