A mixture of iron and an unknown material is bombarded with electrons. The wavelengths of the kα lines are 194 pm for iron and 229 pm for the unknown. What is the unknown material?

Q: Calculate the wavelength of the photon emitted by a hydrogen atom when its electron relaxes from n…

A:

Q: Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of…

A:

Q: The ionization energy for a hydrogen atom is 13.6eV if the atom is in its ground state. It is 3.4eV…

A: Ionization energy - The minimum amount  of energy required to remove an electron from its gaseous…

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

A: Given that : Initial orbit = 6 Final orbit = 1 The Rydberg constant = 1.09678 x 10⁷ m⁻¹

Q: A photon with a wavelength of 1681 nm was emitted from a hydrogen atom as an electron "fell" from…

A: Given- Wavelength of photon = 1681 nm Initial  energy level = 11 To find Final energy level

Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A: Concept: The energy of the photon is equal to the sum of the thresold energy and kinetic energy of…

Q: What is the kinetic energy (in J) of a neutron with a wavelength of 73.2 pm?

A: Wavelength = 73.2 pm = 73.2 x 10-12 m

Q: Note: Reference the Fundamental constants table for additional information. Part 1 of 2 How many…

A: Heat required to melt 1 g of ice = 334 Jh = 6.62610-34 Jsc = 3108 ms-1molar mass of water = 18.02…

Q: ionisation energy

A:

Q: Determine the wavelength (λ) for ν = 7.395 x 1015 Hz

A:

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

A:

Q: Why is it easier to remove a 2p electron from an oxygen atom than from a nitrogen atom?

A: The reason for it easier to remove a 2p electron from an oxygen atom than from a nitrogen atom has…

Q: What must be the velocity, in meters per second, of a beam of electrons if they are to display a de…

A: thank you

Q: Calculate the number of photons that give 4 J of energy and have a wavelength of 6000 pm.

A: Given:  Energy(E) = 4 J  Wavelength = 6000 pm

Q: If an atom of neon-20 were moving at its root mean square velocity at 255°C, what would the de…

A: Root mean square velocity=3RTMGwhere ,         R=Universal gas constant         T=Temperature in…

Q: Explain the attached

A: The wavelength of the radiation is determined by using the Rydberg equation.…

Q: Why is it that the electron seems to have no size other than its wavelength, while the proton and…

A: Electrons have mass and they are lighter than proton and neutron.

Q: What is the wavelength in meters of the photon emitted when this highly excited hydrogen atom of…

A: The Rydberg formula is a mathematical formula which is used for the prediction of the wavelength of…

Q: How fast must a 139.3−g baseball travel in order to have a de Broglie wavelength that is equal to…

A: de Broglie's wavelength is given by the formula  λ = hmv λ = wavelength h = Planks constant =…

Q: What is the velocity of the electrons from sodium?

A: Here given ϕ=4.41×10-19 J of sodium. we have to calculate velocity of ejected electron-

Q: The blue solution formed when an alka li metal dissolves in liquid ammonia consists of the metal…

A:

Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A:

Q: (b) What is the de Broglie wavelength (in m) of a neutron moving at a speed of 2.49 ✕ 108 m/s?

A:

Q: An electron was ejected from a sodium metal surface with 6.8 x 10¹⁴ s⁻¹ radiation. What is the…

A: The given work function ( Wo ) = 2.50 x 10-19 J The formula which is used to determine work function…

Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A: When we energy of Photon to metal then electron which have minimum energy tha is equal to threshold…

Q: Use the Rydberg equation 1/λ= R(a1/n₁²-1/n₂²) to calculate the wavelength (in Å)of the photon…

A: Rydberg equation is used to determine the wavelength of the photon absorbed when the electron goes…

Q: What is the wavelength (in nanometers) of a photon emitted during a transition from ni = 5 to nf = 3…

A: Energy of electrons remains same in an orbital. The energy of electron changes only when an electron…

Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.03 nm. It then…

A: Answer:Here:

Q: Determine the wavelength that hydrogen atoms absorb to reach n=8 and n=9 states from the ground…

A:

Q: What is the energy of a photon of ultraviolet radiation with a wavelength of 3.00 x 10 ^-7 m?

A:

Q: Calculate the number of photons of light with a wavelength of 3000 pm that provide 2 J of energy.

A: It is required to calculate the total number of photons having a total energy of 2 J. Energy of one…

Q: What is the wavelength (in nanometers) emitted during a transition from the n; = 3 state to the nf =…

A: The energy level of an atom depends on the state of the atom and atomic number. The energy in a…

Q: How fast must a 144.9−g baseball travel in order to have a de Broglie wavelength that is equal to…

A: De-Broglie equation is given as,

Q: The reciprocal of the wavelength for one of the emissions from an excited hydrogen at is found to be…

A:

Q: Assuming that the smallest measurable wavelength in an experiment is 0.430 fm, what is the maximum…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A particular sample of radiation has an energy content of 1.09x10^-3 J of energy. Calculate the…

A: Energy and number of moles of photons are related as,

Q: Gold has a work function, Φ, of 5.47 ev. If a sample of gold is bombarded with 191 nm photons, what…

A: The formula of Kinetic energy, KEmax=hϑ-ϕ12mv2=hcλ-φThus, velocity will bev2=2(hc-λφ)mλv=2(hc-λφ)mλ…

Q: An atom is ionized so that it has only one electron. When the electron drops from the n = 3 shell to…

A:

Q: Calculate the energy in joules of one photon of radiation with the wavelength of 5.00 μm.

A:

Q: Arrange the following regions of the electromagnetic spectrum in order of decreasing wavelength:…

A: The wave length of microwaves spectrum is 109 A0. The wave length of infrared radiation is 105 A0.…

Q: ompare the wavelengths of an electron(mass = 9.11×10−31 kg) and a proton(mass = 1.67×10−27 kg), each…

A: The wavelength and momentum (mass × speed) are related to each other as λ = h/mv where h is Planck’s…

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

A:

Q: In Einstein's photoelectric experiment, the kinetic energy of an electron displaced from a metal by…

A: Photoelectric effect: A phenomenon in which electrons are ejected from or within a surface when it…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.