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fgiga [73]
2 years ago
7

If an electron falls from the n = 2 to the n = 1 energy levels in a Hydrogen atom what wavelength of light is emitted?

Chemistry
1 answer:
kari74 [83]2 years ago
3 0

A. The wavelength of light that is emitted is 122 nm.

<h3>What is wavelength?</h3>

Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.

<h3>Wavelength of light is emitted</h3>

When an electron falls from the n = 2 to the n = 1 energy levels in a Hydrogen atom, the wavelength of light is emitted is calculated as follows;

¹/λ = R(1/n₁²  -  1/n₂²)

¹/λ = 109677(1/1 - 1/2²)

¹/λ = 109677(1 - ¹/₄)

¹/λ = 82,257.25

λ = 1/8,225.25

λ = 1.22 x 10⁻⁵ cm

λ = 1.22 x 10⁻⁷ m

λ = 122  nm

Thus, the wavelength of light that is emitted is 122 nm.

Learn more about wavelength here: brainly.com/question/10728818

#SPJ1

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Mass defect = Mp + Mn - MA

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