Which statement is correct? O An atom can be excited by emitting light energy. O An exited atom can return to a lower energy level by absorbing light energy. O All are correct. As energy of a radiation increases its wavelength decreases.

Q: The spectrum of a star is which kind: continuous, emission, or absorption? Why?

A: We have to tell which is spectrum of a star is which kind: continuous, emission, or absorption

Q: Photons of wavelength 315 nm or less are needed to eject electrons from a surface of electrically…

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Q: Quantum numbers arise naturally from the mathematics used to describe the possible states of an…

A: Principal Quantum number : n  Angular Quantum number : l           = 0 to (n-1) Magnetic Quantum…

Q: Certain elements emit light of a specific wavelength whenthey are burned. Historically, chemists…

A: Planks equation is- Where, E=energy of photon, H = planks constant, C =velocity of light ƛ=…

Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.73 nm. It then…

A: Given : Absorbed wavelength = 93.73nm Released wavelength  = 1094 nm

Q: The energies, ? , for the first few states of an unknown element are given in the table in arbitrary…

A: The final energy of electron is the sum of energy in the atom and the energy in the photon and its…

Q: a)A ball of 100 g weight moves with 1000 cm/sec and another particle having mass 9.1091 X 10-28 g…

A: De-Broglie theory was proposed to explain the dual nature of the particle. It relates the wavelength…

Q: If the value of n = 1 ... The quantum number l can have values from  to . ... The total number of…

A: l values are not provided in th question. l value starts from 0, 1, 2, 3, etc l = 0  s orbital l = 1…

Q: Identify the false statement with regard to electromagnetic radiation and the electromagnetic…

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Q: What is the longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom…

A: Here, we must calculate longest wavelength of electromagnetic radiation capable of ionizing this…

Q: Einstein’s 1905 paper on the photoelectric effect was thefirst important application of Planck’s…

A: Photoelectric effect is the emission of free electrons from the surface of a material at which…

Q: I'm writing a paper about Niels Bohr and his contributions to our understanding of atomic structure.…

A: Hydrogen spectrum :  an electric current is passed through a glass tube that contains H2 gas at low…

Q: A certain electron of a certain element experiences an energy of -412 kJ/mol in the ground state…

A: The formula for the calculation of energy is shown below: E =hcλ where; h = Planck's constant c =…

Q: neon (Ne) has 10 electrons. Fou create (Ne) atoms all in the same excited state: 18²28²2p3d" Hund's…

A: Hund’s rule provides information of regarding pairing of electrons in a sub shells. Transition of…

Q: e table below you will find three descriptlons of sclentIsts engaging In activities that are p…

A: The missing word in the given discription given below.

Q: True or False: There is an upper limit on the energy of a photon that can be emittedfrom a hydrogen…

A: When an electron jumps from higher energy level to lower energy level, it radiates energy in the…

Q: The de Broglie wavelength of a bullet (38.75 g) traveling at 700 m/s is ________ m.

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Q: An Electromagnetic wave does not require an medium. O True O False

A: The given statement can be cleared from the electromagnetic wave theory. Let us discuss this in next…

Q: For each of the following sets of quantum numbers, indicate if they are possible or not.  If not…

A: The rules that the quantum numbers should follow to be valid are 1) The l, i.e the  the orbital…

Q: A mercury atom emits light at many wavelengths, two of which are at (1) 404.7 nm and (2) 435.8 nm.…

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Q: Calculate the de Broglie wavelength, in nanometers, associated with a 145g basebeall traveling at a…

A: Given:Velocity of baseball = 168 Km/h = 46.67 m/s.Mass of baseball = 145 g = 0.145 Kg

Q: Which subshells (?, ?, ?, ?, or ?)(s, p, d, f, or g) can have electrons with the indicated magnetic…

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Q: The subshell where value of Principal Quantum number is 4 and value of Azimuthal quantum number is 1…

A: Given :-  Principle quantum number = 4  Azimuthal quantum number = 1  To determine :- Subshell to…

Q: Choose the correct explanation. The photoelectric effect: Select one: O a. contradicted the older…

A: Photoelectric effect explains the ejection of electron for the metal surface, wen a light of…

Q: he following questions relate to the wavefunction for the hydrogen-like atom shown in question 1. a.…

A: Since question 1 reference is not provided, proceeding in general terms of wave function and H-like…

Q: The hydrogen in interstellar space near a star is largely ionized by the highenergy photons from the…

A: Given : The wavelength of the photon absorbed = 65 nm And the hydrogen atom is in ground state.

Q: What is the energy for the above frequency / wavelength for one photon and one mole? Step one: Use…

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Q: An electron in an atom is knewn to be in a state with magnatic quantum number What smallest possble…

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Q: A 0.22-caliber handgun fires a 27-g bullet at a velocity of 765 m/s. Calculate the de Broglie…

A: Wave behaviour of matter is described by de-broglie wavelength which is related to matter's momentum…

Q: (a) A green laser pointer emits light with a wavelength of532 nm. What is the frequency of this…

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Q: A photon with a wavelength of 102.6 nm is emitted from a hydrogen atom as excited electron falls to…

A: We can find the answer by Rydberg formula which gives the relationship between wavelength or wave…

Q: Certain elements emit light of a specific wavelength whenthey are burned. Historically, chemists…

A: Planks equation is- Where, E=energy of photon, H = planks constant, C =velocity of light ƛ=…

Q: a. What is the longest possible wavelength for a line in the Balmer series? b. What is the shortest…

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Q: The work function for lithium is 279.7 kJ/mol (that is, it takes 279.7 kJ of energy to remove one…

A: Given, work function of lithium = 279.7 kJ/mol According to Avogadro number of atoms, 1 mol of atom…

Q: O As the wavelength increases, photon energy decreases. O Wavenumber is inversely proportional to…

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Q: Electrons can sometimes fill orbitals in a manner other than according to the rules we have…

A: According to the Afbau rule, lower energy orbitals are filled before the higher energy orbitals. An…

Q: Consider a helium ion with one electron in the ground state. It turns out that it would take about…

A: Energy required to remove electron from helium ion = 28 eV

Q: Without performing any calculation, predict which of the following electronic transitions will…

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Q: Waves have energy and can transfer energy. O True O False

A: Wave is a disturbance in a medium that carries energy without net movement of particles.  There are…

Q: Following successive ionization energies (IE in kJ/mol) are for which atom?    IE1 = 1085        IE2…

A: Succesive ionisation energies of the atom are given.

Q: If our eyes could see a slight wider region of the electromagnetic spectrum, we could see a fifth…

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Q: If the value of n = 1 ... The quantum number l can have values from  to . ... The total number of…

A: n = principal quantum number l =  azimuthal quantum number ml =  magnetic quantum number  l can have…

Q: 1. Explain what you understand about the 4 Quantum Numbers and how these are used to describe the…

A: Quantum numbers = Quantum numbers describe the electron of an atom.

Q: The line of longest wavelength in visible light for the emission spectrum of hydrogen, 656nm (Balmer…

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Q: The quantum numbers (n, ℓ, mℓ, ms) for the valence electron of a potassium atom in its ground state…

A: Potassium is an element of group 1. The atomic number of K is 37.

Q: Electron orbits exist under what rules? O The orbit must represent a whole number multiple of a…

A: The electrons in lower orbits are stable (since they are attracted to nucleus). The electrons…

Q: A student describes the 3s electron in an atom as having a lower energy than the 2s electron in the…

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Q: What are the variables within the waves shown on the electromagnetic spectrum? Give me at least two…

A: The variables shown in the electromagnetic spectrum are frequency,wavelength,energy.Where the…