2. Estimate the de Broglie wavelength of an electron (me - 9.11 x 10- kg) as...
Part A m, how fast is the The mass of an electron is 9.11 x 10-5 kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31 x 10- electron moving relative to the speed of light? The speed of light is 3.00 x 10 m/s Express your answer numerically as a percent. View Available Hint(s)
1. (A) Find the de Broglie wavelength (in nm) associated with an electron that is moving with a velocity of 2310 km/s. The electron rest mass is 9.11 x 10-31 kg. Note, electrons having this speed would need to be treated as waves in atoms because the wavelength is on the order of the size of atoms. (B) A baseball weighs 220 g. Top speed for a professional pitcher is about 100 mph when he throws a fast ball. Find...
What is the de Broglie wavelength of an electron in the n=2 level of a hydrogen atom? 0.067 m 0.67 nm 0.21 nm 3.2 nm 14.1 nm The answer is (A) why?
What is the velocity of an electron that has a de Broglie wavelength of 274 pm? (1 pm = 10-12 m, mass of electron = 9.11 x 10-31 kg)
In the Bohr model of the atom, an electron can be thought of a small sphere that rotates around the nucleus. In a hydrogen atom, an electron (me=9.11 x 10^-31 kg) orbits a proton at a distance of 5.3 x 10^-11 m from the proton. If the proton pulls on the electron with a force of 9.2 x 10^8 N, how many revolutions per second does the electron make? 6. In the Bohr model of the atom, an electron can...
Calculate the de Broglie wavelength of: a) an electron moving through air at the speed of sound (343 m/s in air). Mass of electron: 9.11x10-31 kg. λ = nm b) a 145-g baseball pitched at 105.1 miles per hour. (1.000 mile = 1609.34 m) λ = x 10a m a = Question 1 0/6 pts Calculate the de Broglie wavelength of: a) an electron moving through air at the speed of sound (343 m/s in air). Mass of electron: 9.11x10-31...
14. Consider the hydrogen atom. (a) What value of wavelength is associated with the Lyman series for n = 2? (Rydberg constant RH = 1.097 x 10^7 m^-1). (b) An electron in a hydrogen atom makes a transition from the n = 4 to the n = 3 energy state. Determine the energy (in eV) of the emitted photon. (c) Calculate the radius, speed. linear momentum. and de Broglie wavelength of the electron in the first Bohr orbit. (me =...
Calculate the de Broglie wavelength of an electron with a speed of 2.75 x 107 km/hr and a mass of 9.11 x 10–28 g.
Calculate the de Broglie wavelength of (a) a 1.15 keV electron (mass = 9.109 x 10-31 kg), (b) a 1.15 keV photon, and (c) a 1.15 keV neutron (mass = 1.675 x 10-27 kg). (a) Number 10.0362 Units nm (b) Number 10.762 Units nm (c) Numbe76.44e-4 units Inm
(a) Rank the following particles in order of their de Broglie wavelength, from longest wavelength to shortest wavelength. If any two particles have the same de Broglie wavelength, state this. Explain how you made your ranking. (i) A proton (mass 1.67 ´ 10–27 kg) moving north at 1.0 ´ 103 m/s (ii) A proton (mass 1.67 ´ 10–27 kg) moving west at 2.0 ´ 103 m/s (iii) An electron (mass 9.11 ´ 10–31 kg) moving south at 1.0 ´ 103...