If 505 nm radiation is shone on potassium, what is the velocity of the ejected electrons?

Q: What is the wavelength of an electron moving with a speed of 5.97*106 m/s? The mass of the electron…

A: The wavelength of an electron moving with a speed of 5.97 × 106 m/s is calculated as,

Q: Calculate the energy of a photon of radiation whose wavelength is 413 nm.

A: wavelength of photon = 413 nm = 413*10-9 m

Q: An alpha particle (mass 6.6X10⁻²⁴g) emitted by radiumtravels at 3.4X10⁷±0.1X10⁷mi/h.(a) What is…

A: a. The relationship between de-Broglie wavelength, λ, of any particle of mass m and speed u is as…

Q: ionisation energy

A:

Q: What's the frequency and energy for light with a wavelength of 712.4

A: Wavelength of light is inversely proportional to frequency of light.

Q: A rifle bullet (mass= 1.50 g) has a velocity of 7.00 x 10^2 mph( miles per hour). what is the…

A: Introduction: Wavelength can be defined as the distance between two successive crests or toughs of a…

Q: if a photon has 6.89*10^-19 J of energy what is its wavelength?

A:

Q: Neutron diffraction is an important technique for determiningthe structures of molecules. Calculate…

A:

Q: For a hydrogen atom, calculate the wavelength of light (in m) that would be emitted for the orbital…

A: The ground state energy level has value 1. The excited state energy level is 5. The value of Rydberg…

Q: Given a neutron in a box of length 1 angstroms. Calculate the energy of the ground state and the…

A: 1 Joule = 6.242 x 1018 eV.Energy for a particle in one dimensional box is given as follows,

Q: Calculate the wavelength of the emitted photon when a particle of 1.0 x 10-27g in a box 6.0 A° long…

A:

Q: -What are the physical meaning of the following terms? a. Corresponding principle b. Principle…

A: The energy of an electron and the most likely distance of the electron from the nucleus are…

Q: What is the energy in joules of a photon with a wavelength of 610 nm?

A:

Q: A NAVY system operates with a frequency of 76 Hz. What is the wavelength of this radiation in…

A: The energy is related to frequency of radiation as, E = hf where E = energy of radiation in J h =…

Q: What wave length of radiation has a radiation has photons of energy 2.87 ×10-18J?In which portion of…

A: The electromagnetic spectrum consists of different types of EM-radiations having different…

Q: For a hydrogen atom, calculate the wavelength of light (in m) that would be emitted for the orbital…

A: Applying concept of hydrogen spectra. 1/lemda= z2RH(1/n12 - 1/n22)

Q: Calculate the energy of a photon of electromagnetic radiation whose frequency is 2.94 (10^14 s^-1)

A: Given :- frequency of a photon of electromagnetic radiation = 2.94 × 1014 s-1  To calculate :…

Q: calculate the wavelength of an H atom mass= 1.674X10^-27 moving at 7.00X10^2

A:

Q: Carbon dioxide readily absorbs radiation with an energy of 4.67×10−20 J.. What is the wavelength (λ)…

A: Given is, Energy = 4.67×10−20 J

Q: What is the energy of a photon of yellow light with a wavelength of 580 nm?

A: Given :- wavelength of light = 580 nm  To calculate :- energy of a photon

Q: The threshold frequency for magnesium is 8.84 x 1014 Hz.  If magnesium metal is exposed to a light…

A:

Q: In a discharge tube, radon atoms emit light as they undergo transitions from one energy level to…

A: When an electron absorbs energy it gets excited to higher energy level from the ground state and…

Q: What is the energy per photon of light with a wavelength of 426nm?

A: Given Wavelength of light of photon = 426 nmEnergy per photon of light = to be determined  = E

Q: Pieces of potassium (Φ  = 3.68 ×× 10–19 J) and sodium (Φ  = 4.41 ×× 10–19 J) metal are exposed to…

A:

Q: - A beam of electrons has. . (A) Wave properties. (B) Particle properties. (C) Both of these (D)…

A: An atom or element hav electron in it which revolve around the nucleus.

Q: The meter was defined in 1963 as the length equal to 1,650,763.73 wavelengths of theorange-red…

A: Given: 1m = 1,650,763.73 wavelengths of theorange-red radiation emitted by the krypton-86 atom

Q: A rifle bullet (mass = 1.50 g) has a velocity of 7.10 × 10² mph (miles per hour). What is the…

A: We are given  mass (m) = 1.50g = 0.0015 kg velocity  (v) = 7.1×102 mph = 1142.6 km/h or, in ms-1, v…

Q: A fully ionized atom has an atomic number of 8, the nucleus then produces an atom with a muon. When…

A:

Q: 3. Which wavelength is the most energetic? Which is the least energetic? 4. What do you notice about…

A: We know that, E=h ×cλ Where, E= energy of the radiation, h= Planck's constant, c= speed of light, λ=…

Q: The strongest emission line for helium is at 420nm. What is the formula for determining the energy…

A:

Q: Calculate the frequency of an electron traveling at 1.85x107 m/s? (electron mass: 9.11x10-28 g)

A: De Broglie was a scientist who proposed that the light has the ability to exhibit both particle as…

Q: What is the energy of a photon with a wavelength of 325 nm?

A: Given : wavelength = 325 nm = 325 × 10-9 m Energy = hc ÷ wavelength

Q: What is the energy of a photon of light with a wavelength of 435 nm?

A: The energy of the radiation is quantized. The smallest unit of energy of the radiation is known as…

Q: What is the energy of a photon corresponding to radio waves of frequency 1.286 × 10° /s? Energy = J…

A:

Q: When light with a wavelength of 197 nm strikes the surface of tin metal, electrons are ejected with…

A:

Q: Pieces of potassium (Φ  = 3.68 ×× 10–19 J) and sodium (Φ  = 4.41 ×× 10–19 J) metal are exposed to…

A: The velocity of the electron that ejected from the potassium plate is; hv=φ+K.E6.626×10-34 Js×3×108…

Q: What is the wavelength of a neutron traveling at a speed of 4.73 km/s? (Neutrons of these speeds are…

A:

Q: When a particle of mass 9.1 x 10-28 g in a certain onedimensional box goes from n=5 to n=2 level, it…

A: mass of particle , m = 9.1 x 10-28 g   = 9.1 x 10-31Frequency ν = 6.0 x 1014  s-1initial level , n2…

Q: A rifle bullet (mass = 1.50 g) has a velocity of 7.10 x 102 mph (miles per hour). What is the…

A:

Q: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

Q: Pieces of potassium (Φ  = 3.68 ×× 10–19 J) and sodium (Φ  = 4.41 ×× 10–19 J) metal are exposed to…

A:

Q: Calculate the ionization energy of the lithium atom in the steady state and then determine which…

A: Ionization energy is calculated using the expression: E=13.6Z2n2eV where Z is the atomic number and…

Q: What is the energy (in Joules) of a photon of light whose wavelength is 623.83 nm?

A:

Q: Calculate the wavelength (in nm) of a neutron traveling at a speed of 85.0 m/s. The mass of a…

A: Wavelength can be calculated using the given equation:

Q: Pieces of potassium (Φ  = 3.68 × 10–19 J) and sodium (Φ  = 4.41 × 10–19 J) metal are exposed to…

A: Einstein’s photoelectric equation is given below.

Q: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

A: The question is based on the concept of atomic structure. we have to calculate the wavelength of the…

Q: Determine the  kinetic energy (in  J/electron) of electrons with  4.25E-3  m  wavelength

A: Given: Wavelength of electron = 4.25 × 10-3 m

Q: Pieces of potassium (phi = 3.68 * 10 ^ - 19 * j) and (Phi = 4.41 * 10 ^ - 19 * j) are exposed to…

A: We have Einstein's photoelectric equation Energy = work function + KE hcλ=ϕ+12mv2  For potassium, ϕ=…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.