Answer:
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Answer:
Evaporation from the hydrosphere provides the medium for cloud and rain formation in the atmosphere. The atmosphere brings back rainwater to the hydrosphere. The atmosphere provides the geosphere with heat and energy needed for rock breakdown and erosion. The geosphere, in turn, reflects the sun's energy back into the atmosphere.
Explanation:
Group 2 elements are the alkaline earth metals
<span> The energy of wave if it has a wavelength of 3.0 </span>× <span>10⁷ nm is
6.26 </span>
× 10⁻²⁴ J.
Attached below, is how to derive that answer. Note that, E= Energy, λ = wavelength, h = Plank's Constant and C= speed of light
Also, I converted the wavelength from nm to cm.
C. Visible light does not produce transitions between electronic energy levels in the N₂ molecule but does produce transitions in the I₂ molecule.
Explanation:
Abortion of light by molecules will produce electronic transitions from a ground level to a higher level equal to the energy of absorbed light.
In the case of nitrogen (N₂) the allowed electronic transitions are between electronic energy levels with a energy difference equal to the energy of photons of the ultraviolet light. Nitrogen will not absorb from the visible range so it is colorless.
Now iodine (I₂) have the allowed electronic transitions between electronic energy levels with a energy difference equal to the energy of photons of the visible light. As a consequence Iodine vapors have a violet color.
Learn more about:
electronic transitions
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