Use the data in Table 1.7 and the Ketelaar triangle in Fig. 2.28 to predict the nature of the bonding in BeBr₂, MgBr₂, and BaBr₂.

Table 1.7.

Figure 2.28.

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TABLE 1.7 Pauling Xp. Mulliken, XM, and Allred-Rochow, XAR electronegativities H 2.20 3.06 2.20 LI Be 1.57 1.99 B с N 2.04 2.55 3.04 1.83 2.67 3.08 3.22 1.47 2.01 2.50 3.07 3.50 Mg Al SI P S 1.31 1.90 2.19 2.03 2.39 1.47 1.74 2.06 Ga Ge As Se 1.81 2.01 2.18 2.55 1.34 1.95 2.26 2.51 1.82 2.02 2.20 2.48 Sr In Sn Sb Te I 1.78 1.96 2.05 2.10 2.66 1.30 1.83 2.06 2.34 2.88 1.49 1.72 1.82 2.01 2.21 TI Pb BI 2.04 2.33 2.02 1.80 1.90 1.90 1.44 1.55 1.67 0.98 1.28 0.97 Na 0.93 1.21 1.01 к 0.82 1.03 0.91 Rb 0.82 0.95 0.99 1.21 0.89 0.99 Cs Ba 0.79 0.89 0.70 0.90 0.86 0.97 O 1.61 1.63 1.37 1.23 Ca 1.00 1.30 1.04 LL 3.44 3.98 4.43 4.10 CI 2.58 3.16 2.65 3.54 2.44 2.83 Br 2.96 3.24 2.74 He 3.5 5.5 Ne 4.60 5.10 Ar 3.36 3.30 Kr 3.0 2.98 3.10 Xe 2.6 2.59 2.40