Atmospheric ozone plays a protective role by absorbing high‑energy, damaging UV radiation, including UV‑A (320–400 nm) , UV‑B (280–320 nm), and UV‑C (200–280 nm). Unfortunately, human‑caused pollution has eroded the ozone layer in the stratosphere, allowing a greater amount of ultraviolet radiation to reach the Earth's surface. The damaging effects of the radiation are related to its photon energy. Arrange the regions of UV radiation from lowest to highest photon energy. UV‑B UV‑C UV‑A Lowest photon energy: ______________ Middle photon energy: _______________ Highest photon energy: ______________   Which region of the UV spectrum has the greatest frequency? 1. UV‑C 2. All three regions have the same frequency. 3. UV‑A 4. UV‑B

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Atmospheric ozone plays a protective role by absorbing high‑energy, damaging UV radiation, including UV‑A (320–400 nm) , UV‑B (280–320 nm), and UV‑C (200–280 nm). Unfortunately, human‑caused pollution has eroded the ozone layer in the stratosphere, allowing a greater amount of ultraviolet radiation to reach the Earth's surface. The damaging effects of the radiation are related to its photon energy.

Arrange the regions of UV radiation from lowest to highest photon energy.

UV‑B

UV‑C

UV‑A

Lowest photon energy: ______________

Middle photon energy: _______________

Highest photon energy: ______________

 

Which region of the UV spectrum has the greatest frequency?

1. UV‑C

2. All three regions have the same frequency.

3. UV‑A

4. UV‑B

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