While in this first excited state, the electron receives 2.55 eV of energy. What is the quantum number n that describes the energy level that the electron ends up at? *Please explain how to calculate, the correct answer i 4, but why? Thank you!
While in this first excited state, the electron receives 2.55 eV of energy. What is the...
The electron in a hydrogen atom is in the first excited state, when the electron acquires an additional 2.86 eV of energy. What is the quantum number of the state into which the electron moves? a. 1 b. 2 c. 3 d. 4 e. 5
For the hydrogen atom, its energy at ground state is 13.6 eV, at first excited state is 3.4 eV at second excited state is 1.5 eV and at the third excited state is 0.85 eV. i) Give the energy value for the first two states in Joule (J). [1eV =1.6 x 10-19 J] (2 marks) ii) With the aid of schematic diagram, determine the energy of emitted photon when the atom jumps from the first and third excited states to...
E-0.38 eV; E-0 eV) A. The electron will be raised from the ground state to the fifth "excited" state, i.e. ton-d. B. The electron will be raised from the ground state to an excited state with n larger than 6, but will still be bound in the atom. The electron in the atom will drop down to the ground state. C. The electron will be removed from the atom. A gamma ray photon Eo strikes a hydrogen atom. Which of...
The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 1870 and 102.5 nm. What is the quantum number of the initial excited energy level from which the electron falls?
The energy of the first excited state of a hydrogen atom is -0.34 eV ± 0.0003 eV. What is the average lifetime for this state?
II Review | Constants | Periodic Table An electron with 1.9 eV of kinetic energy collides with an atom whose energy-level diagram is shown in (Figure 1). Part A The electron kicks the atom into an excited state. What is the electron's kinetic energy after the collision? Express your answer in electron volts. Figure (< 1 of 1 ΑΣΦ n = 3 - E, = 4.0 eV Submit Request Answer n = 2- E, = 1.5 eV E, = 0.0...
3 (b) The energy of a Bohr atom in the n-th excited state is given by the formula E--a2mc2 2,7, where α-e2/(4πέρ,10hc)-1 /137, m is the electron mass and e denotes the electron electric charge. i) Why is the total energy negative? Explain briefly your answer. ii) What is the radius of the electron in the n-th excited state in the Bohr atom? To answer that correctly follow the next steps Use Bohr's angular momentum quantization principle to obtain an...
Electrons in an unknown atom(not hydrogen) are excited from the ground state to the n=3 energy level. As these electrons make quantum jumps back to the ground state, photons of three different energies are emitted. The most energetic photon has an associated wavelength of 62.2 nm and the least energetic photon has an associated wavelength of 207 nm. What is the associated wavelength of the other type pf photon? The answer is 3-1 (20 eV), 3-2 (6 eV) and 2-1...
Energy (eV) 1. The figure to the right shows the first few energy levels for lithium. The ground state for the valence electron (the electron most likely to change 4 energy levels) is the 2s state which is why that state is set to O eV. Make a table showing all possible transitions in the emission spectrum. For each possible transition indicate A. Energy change of possible transition. B. At for the transition. Is the transition allowed? C. Wavelength of...
A hydrogen atom has an excited electron in the n = 5 state. The electron descends to the n = 2 state. What is the energy level of the n = 5 state? What is the energy level of the n = 2 state? What is the wavelength of the emitted photon (3 sigfigs please)?