An electron remains in an excited state of an atom for typically 10^?8s. What is the minimum uncertainty in the energy of the state (in eV)?
An electron remains in an excited state of an atom for typically 10^?8s. What is the...
An atom in an excited state 2.75 eV above the ground state remains in that excited state 2.05 µs before moving to the ground state. (a) Find the frequency of the emitted photon. THz (b) Find the wavelength of the emitted photon. nm (c) Find the approximate uncertainty in energy of the photon. ΔE ≥ peV
3. An atom in an excited state 1.80 eV above the ground state remains in that excited state 2.00 μs before m oving to the ground state. Find (a) the frequency and (b) the wavelength of the emitted photon. (c) Find the approximate uncertainty in energy of the photon.
(20 points) Treat the hydrogen atom as a one-dimensional problem, where the electron is confined to the diameter of the atom in the first excited state (n-2). a.) Use the uncertainty principle to estimate the minimum kinetic energy of an electron in this state, assuming that the uncertainty in position equal to it's diameter. (Note: Relativistic corrections are not necessary). b.) Assuming this excited electron only remains in this state for 0.1 ns, before emitting a photon and returning to...
An atom in an excited state 2.00ev above the ground state remains in that excited state 2.03 us before moving to the ground state. Calculate the frequency of the emitted photon. Submit Answer Tries 0/10 Calculate the wavelength of the emitted photon. Submit Answer Tries 0/10 Calculate the approximate uncertainty in energy of the photon. Submit Answer Tries 0/10
An atom in an excited state3.75eV above the ground state remains in that excited state 2.36μs before moving to the ground state.45. Find the frequency of the emitted photon (in units of 10^-14Hz). (A)5.65 (B)6.67 (C)7.86 (D)8.38 (E)9.06 2.Find the approximate uncertainty in energy of the photon (in units of 10^-10eV). (A) 1.40 (B) 2.67 (C) 3.86 (D) 4.38 (E) 5.06
A relatively long lived excited state of an atom has a lifetime of 3.25 ms. What is the minimum uncertainty (in eV) in its energy?
The electron in a hydrogen atom is in the first excited state, when the electron acquires an additional 2.86 eV of energy. What is the quantum number of the state into which the electron moves? a. 1 b. 2 c. 3 d. 4 e. 5
10. The electron in a hydrogen atom undergoes a transition from the 3rd excited state (n=4) to the ground state (n=1). How much energy, in eV, will be given off by the electron? Use three significant figures. Note that, for hydrogen, E1 -13.6 eV.
4. When a hydrogen atom is bombarded, the atom may be raised into a higher energy state. As the excited electron falls back to the lower energy levels, light is emitted. What are the three longest-wavelength spectral lines emitted by the hydrogen atom as it returns to the n = 1 state from higher energy states? Give your answers to three significant figures. The lowest possible state, n = 1, corresponds to the electron in its smallest possible orbit; it...
An electron in the Hydrogen atom is in the excited state with energy E2. a) According to the Bohr model, what is the radius of the atom in this state, in Angstroms? b) What is the wavelength le of the electron, in Angstroms? c) What is the momentum of the electron, in kg-m/s ? d) This atom decays from the excited state with energy E2 to the ground state with energy E1 . What is the energy of the emitted photon?...