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miv72 [106K]
2 years ago
7

Which postulate of daltons atomic model was later changed and why

Chemistry
1 answer:
arlik [135]2 years ago
3 0
atom is indivisible particle and can be subdivided into smaller particles
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Electrons transition between energy levels in an atom due to gain or loss of energy. An electron may gain energy and move from its ground state to one of the accessible excited states. The electron quickly returns to ground state, emitting the energy previously absorbed as a photon of light. The wavelength of light emitted is measured using powerful spectrometers.

Atoms can be excited thermally or by irradiation with light of appropriate frequency.

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