Ionization energy graph

Make a graph with an energy scale extending on the ordinate from zero to 3000 kcal/mole and with the abscissa marked at equal intervals with the labels Na, Mg, and Al. Now plot and connect with a solid line the first ionization energies, Ei, of these three elements (see Table 20-IV). Hot Et and connect with a dashed line, E with a dotted line, and Et with a solid line. Draw a... 

The graph shows the first ionization energy for elements with atomic numbers 3-20. According to the graph, what is the approximate first ionization energy for the element with atomic number 16 ... 

The limitations of this naive approach are immediately obvious, if one considers that the molecules [3]radialene 173, 3,4-dimethylidenecyclobutene 174 and fulvene 175 give rise to the same graph Q (see display 23) and thus to identical predictions for their three 7T ionization energies. Using the above parameters one finds /j calc = I 2 calc = 9.0 eV,... 

Notice in the corresponding graph the maxima for the inert noble gases and the minima for the alkali metals. The second stage ionization energy corresponds to the reaction + e , that is to a reaction involving an atom deprived of... 

Figure 4.3. Ionization energies of the elements. The values of the energies (in kJ/mol of atoms) of 1 st and 2nd ionization are shown. Notice the periodic character of these values as a function of the atomic number. Notice the similar trends of the two graphs when the same number of electrons are considered the maxima, for instance, are observed for the 1 st ionization of He and the 2nd ionization of Li, for 1st and 2nd ionization ofNe andNa+, respectively (having both 10 electrons), etc.

The values for ionization energy in the periodic table in Appendix C are first ionization energies. Construct a bar graph to show the relative sizes of lEi values for the main group elements. If available, use spreadsheet software to plot and render your graph. 

For Questions 9-12, use the following graph of ionization energy vi. atomic number ... 

Use data from Fig. 1.39 and Appendix 2B to plot first ionization energy as a function of standard potential for the elements of Groups 1 and 2. What generalizations can be drawn from the graph ... 

This graph shows the relationship between first ionization energy and atomic number for the first 18 elements. 

The graph of the ionization energies shown in Figure 2.5 reveals a number of useful generalizations that will now be described. 

The following graph plots the first, second, and third ionization energies for Mg, Al, and Si. 

Ionization energies for hydrogen and for the main-group elements of the first four periods are plotted on this graph. 

The graph below shows the ionization energies (kilojoules per mole) of main-block elements. Use it to answer questions 12 and 13. 

Cherkasov, A.R., Jonsson, M. and Galkin, V.I. (1999) A novel approach to the analysis of substituent effects quantitative description of ionization energies and gas basicity of amines./. Mol Graph. Model., 17, 28 2. 

Explain why a graph of ionization energy versus atomic number (across a row) is not linear. Where are the exceptions Why are there exceptions ... 

Without looking at data in the text, sketch a qualitative graph of the third ionization energy versus atomic number for the elements Na through Ar, and explain your graph. 

The mass spectrum of methyprylon was obtained using a CEC 21-110 mass spectrometer with an ionizing energy of 70 eV. The output from the mass spectrometer was analyzed and presented in the form of a bar graph, shown in Figure 5, by a Varlan 100 MS dedicated computer system which calculates relative peak intensities by comparing each peak to the most intense peak in the spectrum (5). 

---