ph0t0electric Iab authentic oppowtuvities for collaboration, performance, and me
ID: 1603060 • Letter: P
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ph0t0electric Iab
authentic oppowtuvities for collaboration, performance, and meaningful we seek lo work, and knowledke so they may participate cywahly and reponsibly in society. emitted on the table Record the longest wavelength (lowest energy) at which electrons can be below: Metal Maximum Wavelength for Electrons to be Liberated (nm) Sodium Copper Platinum Calcium 4. Which metal requires the least energy to liberate an electron? Which one requires the most energy to liberate an electron? Remember that larger values for wavelength correspond to lower energies! Most energy needed Least energy needed: 5. Metals tend to react by losing electrons. Do you think a material that requires a lot of energy to remove electrons from would be reactive or unreactive? Explain. 6. Considering this, which of the metals identified in Question 4 would you predict to be most reactive? Which would you predict to be least reactive? Either from your personal experience, or by looking up information about the reactivity of these two metals, check to see if your prediction is correct.Explanation / Answer
4.) Sodium (Na) metal requires least energy to liberate an electron because it has largest wavelength for electron to be liberated or we can say that it has lowest stopping potential value.
Where as Platinum metal requires most energy to liberate an electron because it has smallest wavelength for electron to be liberated among given metal or simply it has highest stopping potential among these metals.
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