The positiron is a bound electron position pair. The positron isthe antiparticle of the electron...

5a) Positronium is a bound state of an electron and a positron. What is the energy...

5a) Positronium is a bound state of an electron and a positron. What is the energy of the photon emitted in transitions of positronium from the first excited state to the ground state? (A) 1.7 eV , (B) 5.1 eV , (C) 6.8 eV , (D) 13.6 eV, (E) 20.4 eV 5b) A new hydrogen-like atom is discovered where the particle orbiting the proton has mass 2me and charge 2e, where me and e are the mass and charge of...

An electron can form a bound state with a positron, called positronium. Find the ground state...

An electron can form a bound state with a positron, called positronium. Find the ground state energy level and Bohr radius for this system. How do they compare to Hydrogen?

What is the energy of an electron in the sixth energy level of hydrogen?     E...

What is the energy of an electron in the sixth energy level of hydrogen?     E =     J According to the Bohr mode, this is all kinetic energy. Using the magnitude of this energy, calculate the velocity of the electron?     v =      m/s What is the radius of the orbit according to the Bohr model?     r =      m What is the deBroglie wavelength of the electron?     λ =     m What is the ratio...

Positronium is an exotic form of matter formed by an electron and a positron (a positively...

Positronium is an exotic form of matter formed by an electron and a positron (a positively charged electron) orbiting around a common center at a distance of 1.06 D (from each other, not from the center). We will assume that the system rotates in a way approximated by the rigidrotor model. Calculate the following: A. The first four energy levels associated to the rotation (in three dimensions) for this system. B. The first four possible values of the angular momentum...

An electron is bound to a region within a crystal by a springlike force having an...

An electron is bound to a region within a crystal by a springlike force having an effective spring constant of 150 ev/nm2. (a) Find the ground state energy in eV. (b) If the electron drops from the 3rd excited state to the 1st excited state, what is the wavelength of the emitted photon? (c) At what total energy in eV will the turnaround distance be 1.5 nm?

A hydrogen atom has an angular momentum 5.275 x 10 ^ -34 kg * m^2/s  According to...

A hydrogen atom has an angular momentum 5.275 x 10 ^ -34 kg * m^2/s  According to the Bohr model, determine: A) The number of the orbit (main quantum number) B) The energy (eV) associated with this state. C) The radius of this orbit. D) The speed of the electron associated with this orbit. e) If a transition occurs from this state to the base state (n = 1), what is the energy that the photon has during the transition? f))....

Singly ionized helium (He+) atom/ion has a single remaining electron and a nuclear charge of +2?...

Singly ionized helium (He+) atom/ion has a single remaining electron and a nuclear charge of +2? (twice that of a proton). Using the Bohr model with appropriate modifications, estimate a) the radius and b) the total energy (in electron volts) of such an atom in its first excited level. c) When the state of this atom changes from the first excited level to the ground level, a photon is emitted in the process. Estimate the energy (in electron volts) of...

An electron is orbiting a newly discovered +5e particle. The mass of this new particle is...

An electron is orbiting a newly discovered +5e particle. The mass of this new particle is 3 times the mass of an electron. What is the reduced mass for this system? What are the radii of stable orbits for this system? Your expression should only depend on n and various constants. What are the energy levels for this system? Your expression should only depend on n and various constants. If an electron makes a transition from the n = 3...

An electron is bound in a finite square well of width 1.85 nm and finite depth...

An electron is bound in a finite square well of width 1.85 nm and finite depth U0=6E?, where E? is the ground-state energy for an infinitely deep potential well that has the same width. If the electron is initially in the ground state level of the finite square well, E1=0.625E?, and absorbs a photon, what maximum wavelength can the photon have and still liberate the electron from the finite well?

(1) Part A: If a electron in a hydrogen atom makes a transition from ground state...

(1) Part A: If a electron in a hydrogen atom makes a transition from ground state to n = 8 level what wavelength of light in (nm) would be needed for the abosorbed photon to cause the transition? Part B: If the same electron falls to a lower level by emmitting a photon of light in the Paschen series what is the frequncy of light in (Hz) thats emitted? (2) When a photon have a wavelength of 195nm strikes the...