This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10-21. You can find the meaning of any SI prefix in the ALEKS Data tab.) energy (23) Use this diagram to complete the table below. What is the energy of the electron in the ground state? What is the energy of the electron in the first excited state? If the electron makes the transition shown by the red arrow, from B to A, will a photon be absorbed or emitted? Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 2 0₂ O absorbed Ⓒemitted Пом X

An electron transitions from the n = (5.00x10^0) energy level to the n = (2.0000x10^0) energy. Calculate the energy, in Joules, associated with this energy transition. If the transition is exothermic be sure to include the appropriate sign. Use the equation: AE = - 2. 18 x 10-18J ( | | This is for administrative purposes only. Rydberg Constant = (2.180x10^-18) Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: х10 Answer

Because the atoms of a given element emit only certain photons of light, only certain_____ occur in those particular atoms.

Macmilla Compared to an orange wave, a green wave has a higher frequency. lower frequency. higher energy. ✔longer wavelength. lower energy. shorter wavelength.

Electrons in potassium ions (excited by heating in a flame) emit visible light whose wavelength is 409nm. What is the frequency of this light? What is the energy of one quantum of this light? What color light is it?

By which process does a molecule absorb light?   A An electron goes from a higher energy level to a lower energy level.     B An isotope goes from a lower energy level to a higher energy level.     C An electron goes from a lower energy level to a higher energy level.   D A proton goes from a higher energy level to a lower energy level.     E An isotope goes from a higher energy level to a lower energy level.     F A proton goes from a lower energy level to a higher energy level.

By which process does a molecule absorb light? O An electron goes from a lower energy level to a higher energy level. O A proton goes from a higher energy level to a lower energy level. O An electron goes from a higher energy level to a lower energy level. OAn isotope goes from a lower energy level to a higher energy level. OA proton goes from a lower energy level to a higher energy level. O An isotope goes from a higher energy level to a lower energy level.

5. Calculate the wavelength(nm) of light that strikes a metal with a threshold frequency of 2.84 x 1014s-1 and ejects an electron with a kinetic energy of 5.48 x 10-19J. Ans : 270. nm

5. The human eye can detect as little as 2.5*10-¹6 joules of light. How many photons of green (510nm) light can your eye detect? How many photons of red (620nm) light can your eye detect? 6. An unknown metal sample is interrogated using a beam of X-rays to liberate electrons which are then caught by a detector that determines their kinetic energy. A beam of X-rays with wavelength 9.54nm irradiate the surface of this metal, and the detector observes electrons with kinetic energies equal to 7.3716*10 J. What is the binding energy of this unknown metal sample.