CHAPTER 7 - ATOMIC STRUCTURE AND PERIODICITY Previous Page 2 of 3 !! Next Calculate the...
Calculate the energy required to excite the hydrogen electron from level n = 1 to n = 5. (Enter your answer to four significant figures.) Energy = __________J
Chapter 7 (Quantum Theory and Atomic Structure) 7 3 attempts left Check my work Be sure to answer all parts. Cobalt-60 is a radioactive isotope used to treat cancers of the brain and other tissues. A gamma ray emitted by an atom of this isotope has an energy of 5.70 MeV (million electron volts 1 eV- 1.602 x 10 J). What is the frequency (in Hz) and the wavelength (in m) of this gamma ray? Enter your answers in scientific...
For an electron in the n - 1 state of the hydrogen atom, calculate the total energy of the electron. (Express your answer to four significant figures.) times 10^-18J For an electron in the n - 1 state of the hydrogen atom, calculate the speed of the electron. (Express your answer to four significant figures.) times 10^6m/s For an electron in the n - 4 state of the hydrogen atom, calculate the angular moment. (Express your answer to four significant...
Chapter 7 (Quantum Theory and Atomic Structure) FILLES 30 3 attempts left Check my work AN MANN Enter your answer in the provided box. The human eye is a complex sensing device for visible light. The optie nerve needs a minimum of 2.0 x 10-7J of energy to trigger a series of impulses that eventually reach the brain. How many photons of blue light (475 nm) are needed? points eBook 3 attempts left Check my work Be sure to answer...
Chapter 7 (Quantum Theory and Atomic Structure) 34 3 attempts left Check my work Enter your answer in the provided box. Rep points A ground-state H atom absorbs a photon of wavelength 92.31 nm. What higher energy level did the electron reach? eBook Guide 3 attempts left Check my work Be sure to answer all parts. points Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 269 g of water is...
Calculate the energy of a photon required to excite a hydrogen atom from the n = 1 state to the n = 2 state. 10. [1pt] Calculate the energy of a photon required to excite a hydrogen atom from the - 1 state to the n - 2 state, Answer: Submit All Answers 11. [1pt] An electron in a hydrogen atom falls to an energy level n = 2. If the wavelength of the emitted electromagnetic radiation is 4.86x10m, what...
Previous Page Next Page Page 12 of 16 Question 12 (4 points) For an electron undergoing relaxation in a hydrogen atom, which transition will result in a photon of the longest wavelength? On = 2 to n=1 On - 3 ton - 2 On = 4 ton - 3 On = 4 to n = 2 Previous Page NEP Page 12 of 16
calculate the energy required to excite an electron from the n=4 level to the n=7 level. what frequency does this correspond to and what region of the electromagnetic spectrum?
Chapter 7 (Quantum Theory and Atomic Structure) 3 attempts left Check my work Be sure to answer all parts. points A radio wave has a frequency of 6.00 x 108 Hz. What is the energy (in J) of one photon of this radiation? Enter your answer in scientific notation. * 10 (select) 9 J eBook Print
I don't understand how to calculate the n values from the wavelength. ATOMIC SPECTROSCOPY CALCULATIONS 1. Hydrogen Calculations a. Determine the wavelength for each peak observed in the hydrogen emission spectrum H Spectral Line Measured spectroscope value) 430 nm Line 1 Line 2 Line 3 Line 4 N/A b. Calculate the initial energy level of each transition observed in the H spectrum. For spectra in the visible region, nfinal is always 2. Be sure to show a sample calculation and...