Sodium, energy level diagram for

Fill in this energy-level diagram for sodium, Na (atomic number 11) ... 

Atomic Systems. Many atomic species may be modeled as three-level systems. Figure 2 illustrates the energy level diagram for sodium. Other alkali and alkaline metals behave in a similar manner. 

Figure 24-11 Partial energy-level diagram for sodium, showing the transitions resulting from absorption at 590, 330, and 285 nm.

Figure 24-20 Energy-level diagram for sodium in which the horizontal lines represent the atomic orbitals, which are identified with their respective labels. The vertical scale is orbital energy in electron volts (eV), and the energies of excited states relative to the ground-state 3.S orbital can be read from the vertical axis. The blue lines show the allowed transitions resulting from emission of various wavelengths (in nm), indicated adjacent to the lines. The horizontal dashed line represents the ionization energy of sodium. (Adapted from J. D. Ingle, Jr., and S. R. Crouch, Spectrochemical Analysis, p. 206.

Figure 4.67 Partial energy-level diagram for sodium.

Fig. 5.15. Energy level diagram for sodium with approximate binding energies for the core levels...

Energy level diagrams for the easily excited atomic lines of lithium, sodium, potassium and rubidium. Wavelengths are given in nanometres for the spectral lines produced by transitions between the different levels. The ionization potential is indicated by the dashed line above the respective diagrams. 

Fig. 1. Atomic energy level diagram for the sodium atom. (Reprinted with permission from Ref. [3].)...

FIGURE 6 21 Energy-level diagrams for (a) a sodium alom showing the source of a line spectrum and (b) a simple molecule showing the source of a band spectrum. 

FIGURE S-1 Energy level diagrams for (a) atomic sodium and (b) magnesium(l) ion. Note the similarity in pattern of lines shown in blue but not in actual wavelengths (A),... 

Figure 10.2. Partial energy-level diagrams for lithium, sodium, and potassium. Adapted from G. D. Christian and F. J. Feldman, Atomic Absorption Spectroscopy Applications in Agriculture, Biology, and Medicine, New York Wiley-Interscience, 1970, p 8, by permission of John Wiley and Sons.

You can write electron configurations and energy level diagrams for ions. The neutral sodium atom (11 protons) has an electron configuration of ls 2s 2p 3s The sodium cation has lost an electron — the valence electron, which is farthest away from the nucleus (the 3s electron, in this case). The electron configuration of Na is ls 2s 2p . 

Energy level diagram of the sodium atom. The energy levels are denoted by the values for the principal quantum number , the orbital quantum number/, and the spin quantum number s. Levels with 1 = 0 are not split for / = 1 two separate levels are drawn (s = 1/2) for/> 1 the splitting is too small to be shown in the figure. Wavelengths of a few special transitions are given in nanometers. 

Note that all the superscripts for an atom must add up to the total number of electrons in the atom—1 for hydrogen, 3 for lithium, 11 for sodium, and so forth. Also note that the orbitals are not always listed in order of principal quantum number. The 4s orbital, for example, is lower in energy than the 3 dorbitals, as is indicated on the energy-level diagram of Figure 5-22. The 4s orbital, therefore, appears before the 3dorbitaI. 

Figure 1.3 Energy levels and wavenumber (nm) diagram for sodium and potassium...

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