3. An atom consists of a. one nucleus and only one electron b. one nucleus and one or more electrons c. protons, electrons, and neutrons d. answers (b) and (c)
Q: According to Bohr's theory of the hydrogen atom an electron can occupy various energy states related…
A: Energy of electron in hydrogen atom is given by E=-13.6Z2n2eV
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A: Given Number of Protons (np) = 8 Number of neutrons (nn)= 9 Number of electrons (ne )= 8 Atomic…
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A: Given the spin-orbit coupling Hamiltonian of an alkaline element, H=βℏ2S.L where S and L are spin…
Q: A hydrogen atom has an electron in then = 4 state. What is the kinetic energy of the electron?
A: we know that k. E In nth state K E = 13.6 / n2 for hydrogen item K E = 13.6 / n2 e V…
Q: Select all of the following statements that are basic assumptions of the Bohr model of the atom.…
A: A) Atoms have a central nucleus with electrons in orbit about this nucleus. C) Electrons orbit…
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Q: After a hydrogen atom absorbs a visible photon which of these may occur? a. electrons jump up…
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Q: If two electrons in the same atom have the same four quantum numbers, then they must have the same…
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Q: If two electrons in the same ațom have the same four quantum numbers, then they must have the same
A: The four quantum numbers of an atom are n, l, m , ms.
Q: 18. The following transitions are for an electron in a hydrogen atom: I. n = 4 to n = 2 II. n = 1 to…
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Q: In the Rutherford Model of the atom all of the mass and positive charge is located in a center…
A: Conclusions of Rutherford Model of the atom is: The positively charged particle and most of the…
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A: Energy level diagram
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A: Given Data: A positron is given. Consider that e- and e+ are orbiting the mutual center of mass. To…
Q: 16) Explain why proton-electron model for a nucleus was discarded.
A: Variuos models were introduced to explain the nuclear structure and properties. One of them was the…
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- 4. The radius of a Uranium-238 nucleus is approximately 7.8 x 10-15 m. Using Heisenberg's uncertainty relation, estimate the energy of an a particle that can be emitted from the nucleus, assuming that the a particle was localized inside the nucleus before it emerged. Use sensible units.multiple choice question Which of the following inconsistencies led to the rejection of the solar system model proposed by Rutherford? A B. Jump to 12 3 Electrons cannot orbit the nucleus because it always will have attraction toward the positively charged nucleus. 5 Orbiting electrons will possess centripetal acceleration and the accelerating charged particles radiate energy away. C. All the positive charge cannot be present inside of the nucleus for stability of the atom. D. All of the above. E. None of the above.12 13 Letter only
- 3-Calculate the energy (in eV) of the levels (1*, 2md, 3rt and 4th ) for the hydrogen atom? 4-Calculate the radii of the orbit (1", 2nd, 3rt and 4h ) for the hydrogen atom?6. The radial wave function of the hydrogen atom in the 2p state is 1 R(r) = 2/6a2 ao where a0 is the Bohr radius. a) Make a graph of the probability density of finding the electron between the distance r and r + dr from the nucleus. b) Calculate the radius where this probability is greatest. c) Calculate the expectation value of the radius and compare it with the previous result.2. If electrons had spin quantum number s = 3/2, but physics was otherwise unchanged from the real world, how many electrons would be present in an atom with entirely filled 1s, 2s, and 2p orbitals?
- QUESTION 9 In the picture are two diagrams of the first five orbits in the Bohr model labeled A - E. The dot in an orbit is the electron. The nucleus is not shown. Shown is a BEFORE and AFTER state of the atom. An energy level diagram for the Bohr hydrogen atom is shown. Which of these events has occurred in going from the BEFORE to the AFTER state? a. a photon of energy 1.51 eV has been absorbed b. an electron of energy 1.51 eV has been emitted c. a photon of energy 0.97 eV has been emitted d. a photon of energy 1.51 eV has been emitted e. a photon of energy 0.97 eV has been absorbedGgg1. Characteristic K x-radiation of an element occurs when: a. the incident electron is absorbed by a target nucleus b. the incident electron is scattered by a target atom without an energy loss c. an electron is ejected from an outer shell of a target atom d. an electron in a target atom makes a transition to the lowest energy state 2. In connection with x-ray emission the symbol Kα(Seigbahn notation) refers to: a. an alpha particle radiation b. an effect of the dielectric constant on energy levels c. x-ray radiation from potassium d. x-ray radiation associated with an electron going fromn= 2 to n = 1 3. In connection with x-ray emission the symbol Lβrefers to: a. a beta particle radiation b. an atomic state of angular momentumh/2π c. the inductance associated with an orbiting electron d. x-radiation associated with an electron going fromn= 4 to n = 2 4. The states being filled from the beginning to end of the lanthanide series of atoms are: a. n= 3, l = 2 states…