this is the figure i used to get the X values but my answers are slightly different the. what other answers have because the X values are slightly different. please help!

4) Calculate the percent ionic character for: TiO2, ZnTe, CsCl, MgCl2. V, Nb, and Ta) have very high melting temperatures, which increase in going down this column. It should be noted that there is not always this consistency in property variations within the periodic table. Physical properties change in a more or less regular manner, however, there are some rather abrupt changes when one moves across a period or down a group 27 Be 2.5 40 ME Se 094 2.1 111.5 1.6 Me 7.6 27 F 57 1.0 2.8 1.8 Te MY 09 1.3/1.3 1.15 1 1.5 / 1.5 AAP 7.820 1.2 2.9 All 09 AY 1.4.4 de 10 3 1.2.5 73/23/12 Lanthanides: 1.0 - 1.2 Actinides: 1.0 - 1.2 Figure 2.9 The electronegativity values for the elements. (From J. E. Brady and F. Senese, Chemistry: Matter and Its Changes, 4th edition. This material is reproduced with permission of John Wiley & Sons, Inc.)