4. An electron in the n = 2 state of hydrogen is excited by absorbing the longest possible wavelength photon. What is the wavelength of this photon and what is its energy?

Q: 2) If the hydrogen atom absorbed a photon of wavelength 1217A, then the electron moved from its…

A: Given wavelength of absorbed photon λ =1217A

Q: 1. Write the black-body spectrum with T = 5800 K as function of electronvolt, the energy unit of…

A:

Q: 4. Calculate the De Broglie wavelength of an electron moving around hydrogen atom with radius of…

A: radius of orbit (r) = 0.529×10-10 m mass of electron (m) = 9.11×10-31 kg

Q: •34 The wavelength of the K line from iron is 193 pm. What is the energy difference between the two…

A:

Q: What is the speed of the emitted electron if a hydrogen atom absorbs light of frequency 7.5 x 10^15…

A: Let speed of emmited electron is v  Now,  mvc = hf

Q: 1. In a certain hydrogen atom you know that it undergoes a transition from a state with n = 3 to a…

A:

Q: 40. The photoelectron spectrum of CO has four major peaks with ionization energies of 14.5, 17.2,…

A: Molecular orbital and photo electron spectrum of CO molecular orbital 1(sigma) and 1(sigma)^* are…

Q: 2. A particle has an average lifetime of 1.24 x 10-8 s. What is the minimum uncertainty of in its…

A: We have giventhe average lifetime of particle (t) =1.24×10-8 s the minimum uncertainity in its…

Q: 1. The uncertainty in the position of an electron, in the atom is approximately 1.5 Å. Find…

A: According to the Heisenberg uncertainty principle                    ∆x∆p≥h4π   where ∆x =…

Q: 5. Explain the theory of electron diffraction in solids, and then calculate the De Broglie and Bragg…

A: To Explain: The theory of electron diffraction in solids and calculate the De Broglie wavelength

Q: 6. Find the wavelength of the spectral line that corresponds to a transition in hydrogen from the n…

A: 1λ=ℜ(1n12−1n22) ℜ is the Rydberg constant, has a value of 1.09737 × 107 m−1. n1 and n2 are the…

Q: 5 - A hydrogen atom, initially at rest in the n = 3 state, undergoes a transition to the ground…

A:

Q: 1- Prove mathematically that the full energy of the electron is given, and then explain the solution…

A: Etotal = - e2 /(8pieor)

Q: 2-Calculate the angle between the total and orbital angular momentum in 4D3 state?

A: State is 4D3/2  General atomic state is expressed as  2s+1 L J   where,  s is total spin quantum…

Q: 3) From the classical physics point of view what was the problem with electron rotating around the…

A:

Q: 1. How can to increase the number of electrons released from a metal surface in the photoelectric…

A: By increasing the incoming light intensity which is above the threshold frequency can cause the…

Q: 1) Determine the frequency and wavelength for a photon for a transition from level 6 to level 4 in…

A: In this question we have to determine the de Broglie wavelength of the electron in level 4. Please…

Q: 2-Calculate the angle between the total and orbital angular momentum in 4D3 state? 2

A:

Q: 25- The quantum number n is most closely associated with what property of the electron in a hydrogen…

A: As per guidelines,  question 25 is answered. For the reaming questions to get answered, post them…

Q: 3. In designing an experiment, you want a beam of photons and a beam of electrons with the same…

A:

Q: 7-Calculate the energies of the electron in the first energy level in 2He", zli* and 4Be**? (neglect…

A:

Q: 13. An electron makes a transition from a higher energy level E to a lower energy level, E, within…

A: Given data The higher energy level is E2 The lower energy level is E1 The plank's constant is h The…

Q: 5 The position and momentum of a 1.00- kev electron are simultaneously determined. If its position…

A:

Q: 5. A hydrogen atom has an electron in the n = 4 state. What is the total energy of the electron? eV

A:

Q: 3. The emission spectrum of Hydrogen has a bright blue-green line at 486 nm. This electron ends in…

A: Ef=initial energy of e-Ef=final enrgy of e-

Q: 1. In stimulated emission, an atom in an excited state can be induced to de-excite to a lower energy…

A: 1. When a photon of energy E=hυ is incident to a particle that are situated at the excited state…

Q: 5) The energy levels of a quantum mechanical system are given by the equation: En hfo f = 10*Hz n =…

A:

Q: 02. An electron in an excited hydrogen atom has deBroglie wavelength of 13.3182 x 101" m, drops into…

A: Given Data: de-Broglie wavelength, λD=13.3182×10-10 m Falling state is ground state (n1=1) Standard…

Q: 5. Light with a frequency of 2.99 × 1015 Hz ejects electrons from the surface of aluminum, which has…

A: The expression for the de-Broglie wavelength,

Q: 3) In a photoelectric experiment using aluminum surface, when light of wavelength 200 nm shines on…

A:

Q: A single electron orbital lithium nucleus Z equals three in the n=4 state. the electron a photon of…

A: This question is based on Atoms topic.  When an electron moves from a higher energy orbit to a lower…

Q: 5. The Lyman series in the line spectra of atomic hydrogen is the name for the light emitted from…

A: (a)

Q: 2. A line of the Lyman series(nf=1) of the spectrum of hydrogen has a wavelength of 95 nm. What was…

A:

Q: 4.Which set of quantum numbers is not possible? * ml ms A 3 -1/2 В -1 -1/2 +1/2 -1/2 3 1 3 +2 O A

A:

Q: 1. Bohr's Model can be used to find the wavelengths of the photons in the absorption or emission…

A: We know that, Wavelength of the photon of emission spectrum is given by, 1λ=RH1n22-1n12 Where, RH is…

Q: 3 Spectroscopy Light can be emitted and absorbed by atoms, but only when the energy of the light, E…

A:

Q: 1. An electron initially moves in first excited state, if it absorb energy with frequency 5×10" Hz.…

A: Scenario: Energy is absorbed by e- initially when it jumps in first excited state. Given: Frequency,…

Q: 1- Prove mathematically that the full energy of the electron is given, and then explain the solution…

A:

Q: 7) Find the wavelength of the photon as an electron makes a transition from n=4 to n=3. for particle…

A:

Q: 4. Describe the following energy state transition for an electron in a hydrogen atom. List the…

A: the energy of an electron in the hydrogen atom is E=-13.6n2eV when an electron jumps from n2 to n1,…

Q: 2. An electron initially moving in the third orbit around the nucleus of the hydrogen atom. Find the…

A: The energy of electron in different orbits can be given by the formula E = -13.6n2 eV Now putting n=…

Q: 4. In describing the atom, we often refer to the "electron cloud." Does this mean that the electron…

A: The modern model of an atom is called the electron cloud model. That is because each orbital around…

Q: 6) What is the longest wavelength that is able to ionize a hydrogen atom?

A: The longest wavelength that is able to ionize a hydrogen atom is obtained as follows

Q: 5. If a hexatriene molecule absorbs light of 2500 Å to change a Tr electron from n=1 to n=2, what is…

A: The length of the molecule is 1.248 pm.

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: