1. 1.6

2.  A spectroscope separates light into its component wavelengths, revealing a line spectrum that is unique to each element.

3.  Bohr explained this phenomena by suggesting that electrons revolve around the atom’s nucleus in orbits of fixed energy

4.  The electrons are restricted to certain energy levels, and the energy is quantized  Quantized means the electrons have a specific amount of energy at each energy level

5.  If an electron absorbs energy, it becomes excited and can jump to a higher energy level  In order for the electron to return to its original energy level, it must release the same amount of energy  The lines that are produced in a line spectrum are a result of the electron falling back to its original position

7.  Electrons can exist at different levels around the nucleus of an atom  These levels, correspond to the quantum numbers

8. Quantum mechanics https://www.youtube.com/watch?v=-YYBCNQnYNMhttps://www.youtube.com/watch?v=-YYBCNQnYNM

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