atomic scale

Smallest measurable realm

Atomic scale describes dimensions at the level of atoms—roughly a tenth of a nanometer.

At this scale, quantum mechanics governs behavior, and individual atoms and molecules become the relevant units: At the atomic scale, materials behave very differently than in bulk.

The term distinguishes phenomena too small for conventional measurement from larger nanoscale or microscale observations.

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electron cloud · nanoscale · quantum mechanics · molecular structure · materials science · Schrödinger equation · quantum leap · microscopic · neutron · electron microscopy · particle · valence · chemical bond · Planck · picometer · wavelength · quark · uncertainty

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size/magnitude of physical scale

atomic scalecosmic scale

Universe-sized frame of reference

macroscopic · human scale · large scale · industrial scale · life-size

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atomic scaleobservable universe

Region light has reached us from

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