What term describes the smallest quantity of energy in quantum theory?

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Multiple Choice

What term describes the smallest quantity of energy in quantum theory?

Explanation:
Energy in quantum theory comes in discrete packets. The term for the smallest amount of energy is a quantum. A photon is one specific kind of quantum of light—the energy of a photon is given by hν—but the general concept of the smallest energy unit is the quantum itself. Joule and electronvolt are units used to measure energy, not the smallest unit, and a photon is a particular quantum of electromagnetic energy, not the universal term for the smallest energy quantity.

Energy in quantum theory comes in discrete packets. The term for the smallest amount of energy is a quantum. A photon is one specific kind of quantum of light—the energy of a photon is given by hν—but the general concept of the smallest energy unit is the quantum itself. Joule and electronvolt are units used to measure energy, not the smallest unit, and a photon is a particular quantum of electromagnetic energy, not the universal term for the smallest energy quantity.

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