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How do atomic spectra work?

Answer 1

In this model, an electron can accept energy, which lifts it to a higher energy level within the atom. When it drops back to its original level, it emits the energy as a photon of light. Since the energy levels are at particular defined energies and distances apart, the energy - and therefore the colour - of these photons will be characteristic for a particular element.

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Answer 2

Natalie Anton

Atomic spectra are produced when atoms absorb or emit light. When an atom absorbs energy, typically from a heat source or an electric current, its electrons move to higher energy levels. When these electrons return to their original energy levels, they emit light at specific wavelengths, creating a unique spectral pattern for each element. This pattern can be used to identify elements in a sample.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.