Does the information on alkali metals in Table 12.9 of the text confirm the general periodic trends
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Does the information on alkali metals in Table 12.9 of the text confirm the general periodic trends in ionization energy and atomic radius? Explain.
Table 12.9
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Properties of Five Alkali Metals Element Li Na K Rb Cs Valence Electron Configuration 2s¹ 3s¹ 4s¹ 5s¹ 6s1 Density at 25°C (g/cm³) 0.53 0.97 0.86 1.53 1.87 mp (°C) 180 98 64 39 29 bp (°C) 1330 892 760 688 690 First Ionization Energy (kJ/mol) 520. 495 419 409 382 Atomic (covalent) Radius (pm) 152 186 227 247 265 Ionic (M+) Radius (pm) 60 95 133 148 169
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