| For example, aluminum, helium, and sodium are monatomic elements, or elements whose atoms can exist alone, without forming molecules. |
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| Although the most common anion formed by oxygen is monatomic, oxygen can also form diatomic ions known as peroxides and superoxides. |
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| With the neutron bond dissolved the now monatomic hydrogen and oxygen molecules are disassociated or liberated. |
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| All are present in the gas as the monatomic elements and argon, krypton, and xenon undergo condensation to either ices or clathrate hydrates at sufficiently low temperatures. |
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| Dalton had used Ockham's Razor to assume elemental gases were monatomic. |
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| Data for monatomic gases like argon and helium give exact agreement, and many diatomic gases show experimental results in close accord with the theory. |
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| In an ideal monatomic gas, the kinetic energy is found exclusively in the purely translational motions of the particles. |
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| In monatomic perfect gases and, approximately, in most gases, temperature is a measure of the mean particle kinetic energy. |
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| As the monatomic hydrogen and oxygen gas bubbles break the surface of the water they recombine in the air space in the top of the electrolyzer as Brown's Gas. |
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| Here, we use monatomic molecules with a number density much lower than a real liquid but higher than a real gas for illustrative purposes only. |
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| Although his gaseous elementary molecules were predominantly diatomic, he also recognized the existence of monatomic, triatomic, and tetratomic elementary molecules. |
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| Resonance fluorescence is generally observed for monatomic gases and for many organic molecules, in particular aromatic systems that absorb in the visible and near-ultraviolet regions. |
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| Any one of these ions may be monatomic or polyatomic, however. |
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