Practice Test ch7, ch8 &ch9; )8 1. In Bohr\'s atomic theory, when level to anoth

Question

Practice Test ch7, ch8 &ch9; )8 1. In Bohr's atomic theory, when level to another energy level an electron moves from one more distant from the nucleus A) energy is absorbed. B) light is emitted. C) energy is emitted. D) no change in energy occurs. E) none of these -2. Consider the following energy-level diagram for a particular electron in an atom. AE Based on this diagram, which of the following statements is incorrect? The wavelength of a photon emitted by the electron jumping from level 2 to level 1 hc isgiven by TAB? B) ?f the electrons in level 1, it may Jump to level 2 by absorbing a photon with energy of AE C) If the electron is in level 1, it may jump to level 2 by absorbing any photon having energy of at least AE D) We would observe an electron jumping from level 2 to level 1 as a single line in a line spectrum E) If the electron is in level 2, it may jump to level 1 by emitting a photon with energy of IAE. 3. The contribution for which de Broglie is best remembered in modern science is A) his statement that no electron can have identical values for all four q numbers. B) his proposal that particles of matter should be associated with wavelike behavior. C) his statement that an electron can exist in an atom only in discrete energy levels. D) his statement that elements show periodic repetition of properties. E) his statement that electrons occupy all the orbitals of a given sublevel singly before pairing begins. Which of the following statements is a valid conclusion from the Heisenberg uncertainty principl A) The square of the wave function is proportional to the probability of finding a 4. particle in space. B) Particles can exhibit wavelike behavior. C) The orbits proposed by Bohr's model of the atom are correct D) An elecron in a 2p orbital is always closer to the nucleus than an electron in a 3p orbital.

Explanation / Answer

1. As electron is moving from lower energy level to higher energy level so it will require energy for this. Hence energy is absorbed by the electron .

Option (A) is the correct answer .

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.