Definition

1. Noun:
   • A single atom of the chemical element carbon: The smallest unit of carbon that retains all the chemical properties of the element. It is the fundamental building block of all organic compounds and many inorganic substances.

Usage

• The term "carbon atom" is used to refer to the individual, discrete particle of carbon, especially when discussing molecular structure, chemical bonding, or stoichiometry in chemistry and physics.
• It is typically used in scientific and technical contexts.

Examples

• Noun:
  • Every molecule of methane (CH₄) contains one carbon atom and four hydrogen atoms.
  • Diamond is a crystal where each carbon atom is bonded to four other carbon atoms in a tetrahedral structure.
  • The scientist studied how a single carbon atom behaves under extreme pressure.

Advanced Usage

• "Activated carbon atom": Refers to a carbon atom in a highly reactive state, often used as a catalyst or adsorbent.
  • The reaction proceeds via an activated carbon atom intermediate.
• "Asymmetric carbon atom" (or chiral center): A carbon atom bonded to four different atoms or groups, giving a molecule the property of chirality.
  • The presence of an asymmetric carbon atom makes the molecule optically active.

Variants and Related Words

• Carbon (n): The chemical element (symbol C) itself.
• Carbonaceous (adj): Consisting of or containing carbon.
• Carbonize (v): To convert into carbon, typically by heating.
• Carbon chain: A linked series of carbon atoms in a molecule.

Synonyms

• C atom: A common abbreviation in chemical formulas and diagrams.
• No true conceptual synonym exists, as it specifies the atomic form of a specific element.

Related Phrases

• Carbon-carbon bond: A chemical bond between two carbon atoms.
  • The strength of the carbon-carbon bond is fundamental to organic chemistry.
• Carbon skeleton: The arrangement of interconnected carbon atoms that forms the basic structure of an organic molecule.
  • First, identify the carbon skeleton of the hydrocarbon.

Related Idioms

Noun

1. an atom of carbon