6. The outermost (valence) electron of sodium is in a 3s state when the atom is...
The following ground-state electron configuration of potassium shows that for the ground state of the potassium atom the outermost electron is in a 4s state: 1s^2 2s^2 2p^6 3s^2 3p^6 4s This tells you that, compared to the 3d level for this atom, the 4s level ANSWER: has a lower energy. has approximately the same energy. has a higher energy.
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Selection rules Using arrows, show all the transitions allowed for the sodium levels available in the diagram Energy (eV) l=0 l=1 l=2 l=3 Ionization limit 5.14 eV 4.51 4.11 5p 4.34 4.29 4f 4.28 5s 3.75 4 3.62 3.19 4s First excited state 2.104 2 Energies for each level are in eV Ground state at E 0 0.00 0-3s Filled 1s, 2s, and 2p levels...
The following ground-state electron configuration of potassium shows that for the ground state of the potassium atom the outermost electron is in a 4s state 1s^22s^22p^63s^23p^64s This tells you that, compared to the 3d level for this atom, the As level has a lower energy. has a higher energy. has approximately the same energy.
4. When a hydrogen atom is bombarded, the atom may be raised into a higher energy state. As the excited electron falls back to the lower energy levels, light is emitted. What are the three longest-wavelength spectral lines emitted by the hydrogen atom as it returns to the n = 1 state from higher energy states? Give your answers to three significant figures. The lowest possible state, n = 1, corresponds to the electron in its smallest possible orbit; it...
DJ SL Bodfre E) none of the above 48. How many valence electrons are in a chlorine atom? A) 1 B) 7 C) 17 D) 10 E) none of the above 49. Which of the following elements has the electron configuration of 3s 3p in its outermost shell A) Si B) Al C) CI D) S E) none of the above 50. If the electron configuration of a ground state sodium atom is 1s 2s2p635), the electron configura sodium cation...
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...
Selection rules and allowed transitions: Electron in a hydrogen atom is in 4p state. The energy level diagram is shown below. Note the energies are given to first decimal place only. (a) Draw arrows showing all the allowed transitions the 4p electron can make that lead to the emission of photon. Include all the transitions until the electron reaches the ground state. (b) What are the kinetic and potential energies of the electron in the 4p state? (c) Calculate the wavelengths (in nm)...
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Q18. Which of the following electron configurations corresponds to the ground state of an atom of a transition element? A) 1s22s22p 3s23p 4s%3d B) 1s22s22p%3s 3p43d4 C) 1s22s22p 3s 3p64523 D) 1s22s22p 3s 3p%3d1045-4p) E) 1s22s2p 3s23p%3d"45²4p3 Q20. Particle A moves three times faster than particle B, calculate the mass ratio of particle A to particle B, if both have the same de Broglie wavelength. A) 0.33 B) 3.0 C) 0.66 D) 0.25 E) 0.75 Q21. Which ground-state...
Consider sodium with its filled 1s, 2s and 2p orbitals and its 3s valence electron in an excited d state. A magnetic field is applied, defining the zaxis along the field. What are possible outcomes if you measure the angles between the applied magnetic field and the orbital angular momentum (you may neglect spin here)!
Consider sodium with its filled 1s, 2s and 2p orbitals and its 3s valence electron in an excited d state. A magnetic field is applied,...
6.(18ps) (a) 6pts. What is the ground state electron configuration and orbital diagram of Nb(41)? Is this paramagnetic or diamagnetic? (b) 4pts. The following is an excited state configuration of a neutral atom: 1s2s22p 3s!4p2 4s 7s Identify the element and write its ground state electronic configuration. Is this excited state diamagnetic or paramagnetic? Explain. 8pts, Write the ground state electron configuration of each of the following ions: c. (iv) Se (34) (ii) In2'(49) (ii) Pd*(46) (i) Zr (40)