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nclz
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Hydrogen atoms are generated in an excited state where the electron occupies the 2p orbital. The excited sample of atoms then emits radiation that is directed to an unknown metal. The radiation ejects electrons with kinetic energy 8.77 x 10^-19 J. Given the data in the table below, identify the unknown metal.
Metal: Ag, Cr, Ca, Mg, Au
Binding energy: 7.58x10^-19, 7.21x10^-19, 4.60x10^-19, 5.86x10^-19, 8.17x10^-19
Attempt:
8.77x10^-19J = -2.18x10^-18x(z^2)(1/2^2)
I also know that E light = E Kinetic + E binding
The correct answer is 7.58x10^-19. Can someone explain to me how to tackle this question?
Please don't delete my question, I put in a lot of effort to type this
Metal: Ag, Cr, Ca, Mg, Au
Binding energy: 7.58x10^-19, 7.21x10^-19, 4.60x10^-19, 5.86x10^-19, 8.17x10^-19
Attempt:
8.77x10^-19J = -2.18x10^-18x(z^2)(1/2^2)
I also know that E light = E Kinetic + E binding
The correct answer is 7.58x10^-19. Can someone explain to me how to tackle this question?
Please don't delete my question, I put in a lot of effort to type this