A Li2+ ion absorbs a photon with a wavelength of 2.09 ×× 102 nm.  Calculate the energy difference in J between the initial and final state of Li2+ ion

In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a metal by a photon was the difference between the energy of a photon and a threshold energy value for the metal. If you were to perform a similar experiment with lead, which has a threshold energy of 6.81 × 10⁻¹⁹ J, and ultraviolet light of wavelength 74.7 nm, what would be the speed (v) of the dislodged electron in meters per second? (K.E. = 1/2mv². The mass of the electron = 9.109 × 10⁻³¹ kg.)

Microwave ovens emit microwave energy with a wavelength of 12.1 cm. What is the energy of exactly one photon of this microwave radiation? E = J

If two wavefunctions, y(x) and ø(x), are orthogonal, this means that they have the following property: O ∞ S 88 y* (x) (x) dx = 1 8 8 S*~*\x{x}³² dx = S*®* [p{x}³² dx=1 |y(x) | (x) – 8 – 8 Soy 88 y* (x) Q(x) dx=0 y* (x) q (x) dx=1

A photon of light produced by a surgical laser has an energy of 3.027 × 10−19 J. Calculate the frequency and wavelength of the photon. What is the total energy in 1 mole of photons? What is the color of the emitted light?

Calculate the ionization energy of the lithium atom in the steady state and then determine which part of the radiation is able to ionize the lithium atom, then calculate the wavelength resulting from the transition between the K ، L level

A Li2+ ion absorbs a photon with a frequency of 6.66 x 10^14 Hz. If the energy of the final state of Li2+ was -7.85 x 10^19 J, calculate the energy of the initial state.

A liquid is exposed to infrared radiation with a wavelength of 8.65×10−4 cm.8.65×10−4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons are required for the liquid to absorb 11.54 J11.54 J of heat?

Microwave ovens emit microwave energy with a wavelength of 12.3 cm. What is the energy of exactly one photon of this microwave radiation? E = J

When rubidium ions are heated to a high temperature, two lines are observed in its line spectrum at wavelengths 7.8 ✕ 10−7 m and 4.2 ✕ 10−7 m. What are the frequencies (in Hz) of the two lines?