(b) Radiation of a certain wavelength causes electrons with a maximum kinetic energy of 0.68 eV to be ejected from a metal whose work function is 2.75 eV. What will be the maximum kinetic energy (in eV) with which this same radiation ejects electrons from another metal whose work function is 2.17 eV?

Silver has a work function, Φ, of 4.64 eV. If a sample of silver is bombarded with 215 nm photons, what will be the wavelength (in meters) of the photo-ejected electrons? (1 eV = 1.60 × 10⁻¹⁹ J, the mass of an electron is 9.109 x 10⁻³¹ kg, and Planck's constant is 6.626 x 10⁻³⁴ Js.)

Determine the shortest frequency of light required to remove an electron from a sample of Ti, if the minimum energy (binding energy) required to remove the electrons from the surface of titanium is 225 kJ/mol.

Radiation and the Electronic Structure of the Atom [References] Use the References to access important values if needed for this question. Compare the de Broglie wavelength of an electron moving at 1.30x10' miles per hour (5.81×10° mn/s) to that of a bullet moving at 700 miles per hour (313 m/s) and a proton with a speed of 1.30×10 miles per hour (5.81×10° m/s) Velocity (m/s) Particle Mass (kg) Wavelength Region electron 9.11 x 10-31 5.81 x 10 bullet 0.00190 313 proton 1.67 x 10-27 5.81 x 10° Submit Answer Try Another Version 1 item attempt remaining

A photon with a wavelength of less than 50.4nm can ionize a helium atom. What is the ionization potential of helium?

(ii) The probability of finding an electron at a certain point in an orbital increases proportional to r 2. Explain why this might be.

Calculate the maximum wavelength, ?max, of electromagnetic radiation that could eject electrons from the surface of platinum, which has a work function of 9.50×10−19 J. If the maximum speed of the emitted photoelectrons is 4.53×106 m/s, what wavelength of electromagnetic radiation struck the surface and caused the ejection of the photoelectrons?

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What frequency of light is needed to eject an electron with a kinetic energy of  3.24 x 10-18 J, from silver (work function= 7.58 x10-19 J)?

12. If electrons had spin quantum number s = 3/2, but physics was otherwise unchanged from the real world, how many electrons would be present in an atom with entirely filled 18, 2s, and 2p orbitals?