What is the general trend in first ionisation energies across Period 3? Explain why aluminium has a lower first ionisation energy than magnesium. Explain why sulfur has a lower first ionisation energy than phosphorus. d. Look at Period 4 in the Periodic Table (Appendix 1).. The first ionisation energies of the p-block elements are given in the table below. Predict the missing value for the first ionisation energy of selenium. p-block element of Period 4 Atomic First ionisation number energy/kJ mol gallium (Ga) 31 577 germanium (Ge) arsenic (As) 32 762 33 966 selenium (Se) 34 bromine (Br) 35 1140 krypton (Kr) 36 1350 Table 10.7: Information table for Question 4. 4.

What is the general trend in first ionisation energies across Period 3? Explain why aluminium has a lower first ionisation energy than magnesium. Explain why sulfur has a lower first ionisation energy than phosphorus. d. Look at Period 4 in the Periodic Table (Appendix 1).. The first ionisation energies of the p-block elements are given in the table below. Predict the missing value for the first ionisation energy of selenium. p-block element of Period 4 Atomic First ionisation number energy/kJ mol gallium (Ga) 31 577 germanium (Ge) arsenic (As) 32 762 33 966 selenium (Se) 34 bromine (Br) 35 1140 krypton (Kr) 36 1350 Table 10.7: Information table for Question 4. 4.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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