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Monatomic definition

mŏnə-tŏmĭk
Occurring as single atoms.

Helium is a monatomic gas.

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(chemistry) Of an element, consisting of a single atom in the molecule; for example: the noble gases. Note: strictly speaking, a molecule has at least two atoms.
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Having one atom in the molecule.
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Consisting of one atom.
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Containing one replaceable atom or atomic group.
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Alternative Forms

Alternative Form of monatomic - monoatomic

Monatomic Sentence Examples

  • The cadmium molecule, as shown by determinations of the density of its vapour, is monatomic. The metal unites with the majority of the heavy metals to form alloys; some of these, the so-called fusible alloys, find a useful application from the fact that they possess a low melting-point.

  • In the more complex gases the specific heat varies considerably with temperature; only in the case of monatomic gases does it remain constant.

  • If two monatomic molecules, having energy of translation only, equivalent to 3 degrees of freedom, combined to form a diatomic molecule with 5 degrees of freedom, the energy lost would.

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Words near monatomic in the Dictionary