Definition

1. Noun:
   • A chemical element: "atomic number 10" is the scientific term for the chemical element with the number 10 in the periodic table. It is a colorless, odorless, and inert (non-reactive) gas.

Usage

• The term "atomic number 10" is used primarily in scientific and technical contexts, such as chemistry and physics, to refer specifically to the element neon. It is a precise identifier based on the number of protons in the atom's nucleus.

Examples

• Noun:
  • The periodic table lists neon at atomic number 10.
  • Atomic number 10 is one of the noble gases.

Advanced Usage

• In scientific classification: The term is used to unambiguously identify the element, especially in data tables or when discussing periodic trends.
  • Elements are ordered by their atomic number; therefore, atomic number 10 comes after fluorine (9) and before sodium (11).

Variants and Related Words

• Neon (Ne): This is the common name and chemical symbol for the element identified by atomic number 10.
  • Neon (atomic number 10) is used in advertising signs.

Synonyms

• Neon: The standard name for the element.
• Element 10: An alternative numerical designation.

Different Meanings

• The term "atomic number 10" has only one specific meaning: it refers exclusively to the chemical element neon. It does not have other general or figurative meanings.

Notes

• The reference context describes key properties of this element: it is a colorless, odorless gas that produces a red glow in electrical discharges (like in vacuum tubes or neon signs), is chemically inert (one of the noble gases), and is present in trace amounts in the Earth's atmosphere.

Noun

1. a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts